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Epidemiological and entomological studies of a malaria outbreak among French armed forces deployed at illegal gold mining sites reveal new aspects of the disease's transmission in French Guiana.

التفاصيل البيبلوغرافية
العنوان: Epidemiological and entomological studies of a malaria outbreak among French armed forces deployed at illegal gold mining sites reveal new aspects of the disease's transmission in French Guiana.
المؤلفون: Pommier de Santi V; French Armed Forces Center for Epidemiology and Public Health (CESPA), Camp Militaire de Sainte Marthe, BP 40026, 13568, Marseille Cedex 02, France. v.pommierdesanti@gmail.com.; Direction Interarmées du Service de Santé en Guyane, Quartier La Madeleine, BP 6019, 97306, Cayenne Cedex, French Guiana. v.pommierdesanti@gmail.com., Girod R; Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306, Cayenne Cedex, French Guiana. rgirod@pasteur-cayenne.fr., Mura M; Institut de Recherche Biomédicale des Armées, BP 73, 91223, Brétigny sur Orge Cedex, France. mariemura@yahoo.fr., Dia A; French Armed Forces Center for Epidemiology and Public Health (CESPA), Camp Militaire de Sainte Marthe, BP 40026, 13568, Marseille Cedex 02, France. aiss.dia@gmail.com., Briolant S; Direction Interarmées du Service de Santé en Guyane, Quartier La Madeleine, BP 6019, 97306, Cayenne Cedex, French Guiana. sbriolant@wanadoo.fr.; Institut de Recherche Biomédicale des Armées, BP 73, 91223, Brétigny sur Orge Cedex, France. sbriolant@wanadoo.fr.; Laboratory of Parasitology, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306, Cayenne Cedex, French Guiana. sbriolant@wanadoo.fr., Djossou F; Unit of Infectious and Tropical Diseases, Andrée Rosemon Hospital, Avenue des Flamboyants, Cayenne, French Guiana. felix.djossou@wanadoo.fr., Dusfour I; Medical Entomology Unit, Institut Pasteur de la Guyane, 23 Avenue Pasteur, BP 6010, 97306, Cayenne Cedex, French Guiana. idusfour@pasteur-cayenne.fr., Mendibil A; Antenne médicale de Castres, Quartier Fayolle - 68 avenue J. Desplat, CS 50025, 81108, Castres Cedex, France. alexandre.mendibil@gmail.com., Simon F; Department of Infectious Diseases and Tropical Medicine, Laveran Military Teaching Hospital, 34 Boulevard Laveran, BP 50, 13013, Marseille, France. simon-f@wanadoo.fr., Deparis X; French Armed Forces Center for Epidemiology and Public Health (CESPA), Camp Militaire de Sainte Marthe, BP 40026, 13568, Marseille Cedex 02, France. xavier.deparis@wanadoo.fr., Pagès F; Cire Océan Indien, Institut de Veille Sanitaire, 2 bis, av Georges Brassens, CS 61002, 97743, Saint-Denis Cedex 9, Réunion, France. frederic.pages@ars.sante.fr.
المصدر: Malaria journal [Malar J] 2016 Jan 22; Vol. 15, pp. 35. Date of Electronic Publication: 2016 Jan 22.
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: BioMed Central Country of Publication: England NLM ID: 101139802 Publication Model: Electronic Cited Medium: Internet ISSN: 1475-2875 (Electronic) Linking ISSN: 14752875 NLM ISO Abbreviation: Malar J Subsets: MEDLINE
أسماء مطبوعة: Original Publication: London : BioMed Central, [2002-
مواضيع طبية MeSH: Mining*, Anopheles/*parasitology , Malaria/*epidemiology , Malaria/*transmission, Animals ; Female ; French Guiana/epidemiology ; Gold ; Humans ; Insect Vectors/parasitology ; Male ; Retrospective Studies
مستخلص: Background: In December 2010, a Plasmodium vivax malaria outbreak occurred among French forces involved in a mission to control illegal gold mining in French Guiana. The findings of epidemiological and entomological investigations conducted after this outbreak are presented here.
Methods: Data related to malaria cases reported to the French armed forces epidemiological surveillance system were collected during the epidemic period from December 2010 to April 2011. A retrospective cohort study was conducted to identify presumed contamination sites. Anopheles mosquitoes were sampled at the identified sites using Mosquito Magnet and CDC light traps. Specimens were identified morphologically and confirmed using molecular methods (sequencing of ITS2 gene and/or barcoding). Anopheles infections with Plasmodium falciparum and P. vivax were tested by both enzyme-linked immunosorbent assay and real-time PCR.
Results: Seventy-two P. vivax malaria cases were reported (three were mixed P. falciparum/P. vivax infections), leading to a global attack rate of 26.5% (72/272). Lack of compliance with vector control measures and doxycycline chemoprophylaxis was reported by patients. Two illegal gold mining sites located in remote areas in the primary forest were identified as places of contamination. In all, 595 Anopheles females were caught and 528 specimens were formally identified: 305 Anopheles darlingi, 145 Anopheles nuneztovari s.l., 63 Anopheles marajoara and 15 Anopheles triannulatus s.l. Three An. darlingi were infected by P. falciparum (infection rate: 1.1%) and four An. marajoara by P. vivax (infection rate: 6.4%).
Discussion: The main drivers of the outbreak were the lack of adherence by military personnel to malaria prevention measures and the high level of malaria transmission at illegal gold mining sites. Anopheles marajoara was clearly implicated in malaria transmission for the first time in French Guiana. The high infection rates observed confirm that illegal gold mining sites must be considered as high level malaria transmission areas in the territory.
Conclusions: Illegal gold mining activities are challenging the control of malaria in French Guiana. Collaboration with neighbouring countries is necessary to take into account mobile populations such as gold miners. Malaria control strategies in the French armed forces must be adapted to P. vivax malaria and sylvatic Anopheles species.
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المشرفين على المادة: 7440-57-5 (Gold)
تواريخ الأحداث: Date Created: 20160124 Date Completed: 20161006 Latest Revision: 20240324
رمز التحديث: 20240324
مُعرف محوري في PubMed: PMC4722744
DOI: 10.1186/s12936-016-1088-x
PMID: 26801629
قاعدة البيانات: MEDLINE
الوصف
تدمد:1475-2875
DOI:10.1186/s12936-016-1088-x