المؤلفون: Assad Z; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Romain AS; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Aupiais C; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Shum M; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Schrimpf C; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Lorrot M; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Corvol H; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Prevost B; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Ferrandiz C; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Giolito A; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Valtuille Z; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Bendavid M; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Cohen JF; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Toubiana J; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., de Pontual L; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Delande CF; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Levy M; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., See P; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Cohen R; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Levy C; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Angoulvant F; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Lenglart L; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Gits-Muselli M; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Biran V; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Diallo K; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Alemede O; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., El Hebil MM; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Durrmeyer X; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Labouret G; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Casanovas N; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Hallak B; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Maréchal O; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Jung C; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Bréhin C; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.)., Ouldali N; From the Department of General Pediatrics, Pediatric Infectious Disease, and Internal Medicine (Z.A., A.G., N.O.), Centre d'Investigations Cliniques, INSERM Unité 1426 (Z.V.), the Pediatric Intensive Care Unit (M. Levy, P.S.), the Pediatric Emergency Department (L.L.), the Department of Microbiology (M.G.-M.), the Neonatal Intensive Care Unit (V.B.), and the Unit of Clinical Epidemiology, INSERM Unité 1123 and Epidémiologie Clinique du Centre d'Investigation Clinique 1426 (K.D., O.A.), Robert-Debré University Hospital, Paris Cité University (Z.A., C.S., A.G., Z.V., M.B., J.F.C., J.T., M.L., P.S., L.L., M.G.-M., V.B., K.D., O.A.), the Departments of General Pediatrics (A.-S.R., M. Lorrot, C.F.) and Pediatric Pulmonology (A.-S.R., M. Lorrot), Armand Trousseau University Hospital, Sorbonne University (A.-S.R., M. Lorrot), the Pediatric Emergency Department (C.S.), the Pediatric Intensive Care Unit (M.B.), and the Department of General Pediatrics and Pediatric Infectious Diseases (C.S., J.F.C., J.T.), Necker-Enfants Malades University Hospital, Saint-Antoine Research Center, INSERM Unité Mixte de Recherche (UMR) S938 (H.C., B.P.), and Assistance Publique-Hôpitaux de Paris (AP-HP), Infection, Antimicrobials, Modeling, and Evolution (IAME) Research Unit, INSERM UMR 1137 (Z.A., L.L., M.G.-M., N.O.), Épidémiologie Clinique et Évaluation Économique Appliqué aux Populations Vulnérables, INSERM UMR 1123 (C.A.), the Center of Research in Epidemiology and Statistics, INSERM UMR 1153 (J.F.C.), and Biodiversity and Epidemiology of Bacterial Pathogens Research Unit, Institut Pasteur (J.T.), Paris Cité University, Paris, Groupe de Pathologie Infectieuse Pédiatrique, Nice (Z.A., M. Lorrot, R.C., C.L., N.O.), the Pediatric Emergency Department (C.A.) and the Department of General Pediatrics (L.P., C.F.D.), Jean Verdier University Hospital, AP-HP de Paris, Bondy, the Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil (M.S., C.J.), Association Clinique et Thérapeutique Infantile du Val-de-Marne France (R.C., C.L.), Institut Mondor de Recherche Biomédicale-Groupe de Recherche Clinique Groupe d'Étude des Maladies Infectieuses Néonatales et Infantiles, Université Paris Est (R.C., C.L., C.J.), and the Clinical Research Center (M.M.E.H., C.J.) and the Neonatal Intensive Care Unit (X.D.), Centre Hospitalier Intercommunal de Créteil, Université Paris Est Créteil, Faculté de Santé de Créteil, Créteil, Association Française de Pédiatrie Ambulatoire, Orleans (R.C., C.L.), and the Departments of Pediatric Pulmonology and Allergology (G.L., N.C.) and General Pediatrics (B.H., O.M., C.B.), Children's Hospital, Toulouse University Hospital, Toulouse - all in France; and the Department of Pediatrics, Department Woman-Mother-Child, Lausanne University Hospital, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland (F.A.).

المصدر: The New England journal of medicine [N Engl J Med] 2024 Jul 11; Vol. 391 (2), pp. 144-154.

نوع المنشور: Journal Article; Multicenter Study

بيانات الدورية: Publisher: Massachusetts Medical Society Country of Publication: United States NLM ID: 0255562 Publication Model: Print Cited Medium: Internet ISSN: 1533-4406 (Electronic) Linking ISSN: 00284793 NLM ISO Abbreviation: N Engl J Med Subsets: MEDLINE

مواضيع طبية MeSH: Antibodies, Monoclonal, Humanized*/therapeutic use , Antiviral Agents*/therapeutic use , Bronchiolitis, Viral*/drug therapy , Bronchiolitis, Viral*/etiology , Bronchiolitis, Viral*/therapy , Bronchiolitis, Viral*/virology , Respiratory Syncytial Virus Infections*/complications , Respiratory Syncytial Virus Infections*/drug therapy , Respiratory Syncytial Virus Infections*/therapy, Female ; Humans ; Infant ; Infant, Newborn ; Male ; Case-Control Studies ; Hospitalization/statistics & numerical data ; Logistic Models ; Prospective Studies ; Respiratory Syncytial Virus, Human ; Respiration, Artificial