دورية أكاديمية
The effect of age on transmission of 2009 pandemic influenza A (H1N1) in a camp and associated households.
العنوان: | The effect of age on transmission of 2009 pandemic influenza A (H1N1) in a camp and associated households. |
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المؤلفون: | Sugimoto JD; Center for Statistics and Quantitative Infectious Disease, Vaccine and Infectious Disease Institute, Fred Hutchinson Cancer Research Center, Seattle, WA, USA., Borse NN, Ta ML, Stockman LJ, Fischer GE, Yang Y, Halloran ME, Longini IM Jr, Duchin JS |
المصدر: | Epidemiology (Cambridge, Mass.) [Epidemiology] 2011 Mar; Vol. 22 (2), pp. 180-7. |
نوع المنشور: | Journal Article; Research Support, N.I.H., Extramural |
اللغة: | English |
بيانات الدورية: | Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 9009644 Publication Model: Print Cited Medium: Internet ISSN: 1531-5487 (Electronic) Linking ISSN: 10443983 NLM ISO Abbreviation: Epidemiology Subsets: MEDLINE |
أسماء مطبوعة: | Publication: <2000>- : Hagerstown, MD : Lippincott Williams & Wilkins Original Publication: [Cambridge, MA : Blackwell Scientific Publications ; Chestnut Hill, MA : Epidemiology Resources, c1990- |
مواضيع طبية MeSH: | Camping* , Housing* , Pandemics*, Influenza A Virus, H1N1 Subtype/*isolation & purification , Influenza, Human/*epidemiology , Influenza, Human/*transmission, Adolescent ; Adult ; Age Factors ; Female ; Health Surveys ; Humans ; Male ; Models, Statistical ; Retrospective Studies ; Washington/epidemiology ; Young Adult |
مستخلص: | Background: A major portion of influenza disease burden during the 2009 pandemic was observed among young people. Methods: We examined the effect of age on the transmission of influenza-like illness associated with the 2009 pandemic influenza A (H1N1) virus (pH1N1) for an April-May 2009 outbreak among youth-camp participants and household contacts in Washington State. Results: An influenza-like illness attack rate of 51% was found among 96 camp participants. We observed a cabin secondary attack rate of 42% (95% confidence interval = 21%-66%) and a camp local reproductive number of 2.7 (1.7-4.1) for influenza-like illness among children (less than 18 years old). Among the 136 contacts in the 41 households with an influenza-like illness index case who attended the camp, the influenza-like illness secondary attack rate was 11% for children (5%-21%) and 4% for adults (2%-8%). The odds ratio for influenza-like illness among children versus adults was 3.1 (1.3-7.3). Conclusions: The strong age effect, combined with the low number of susceptible children per household (1.2), plausibly explains the lower-than-expected household secondary attack rate for influenza-like illness, illustrating the importance of other venues where children congregate for sustaining community transmission. Quantifying the effects of age on pH1N1 transmission is important for informing effective intervention strategies. |
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معلومات مُعتمدة: | R01 AI032042 United States AI NIAID NIH HHS; U01 GM070749 United States GM NIGMS NIH HHS; R01-AI32042 United States AI NIAID NIH HHS; U01-GM070749 United States GM NIGMS NIH HHS |
تواريخ الأحداث: | Date Created: 20110115 Date Completed: 20110613 Latest Revision: 20211020 |
رمز التحديث: | 20231215 |
مُعرف محوري في PubMed: | PMC3755879 |
DOI: | 10.1097/EDE.0b013e3182060ca5 |
PMID: | 21233714 |
قاعدة البيانات: | MEDLINE |
تدمد: | 1531-5487 |
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DOI: | 10.1097/EDE.0b013e3182060ca5 |