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Temporo-spatial dynamics and behavioural patterns of 2012 cholera epidemic in the African mega-city of Conakry,Guinea

引用

Infectious Diseases of Poverty 2018年第1期7卷 145-154页

作者： Alexandre Blake Veronique Sarr Keita Delphine Sauvageot Mamadou Saliou Berthe Marie Njanpop Fode Sory Bertrand Sudre Koivogui Lamine martin mengel Bradford DGessner Keita Sakoba Agence de Medecine Préventive ParisFrance Division Prevention et Lutte contre la Maladie(DPLM) Ministere de la santéPublique et de l’Hygiene Publique ConakryConakryGuinea Institut National de Sante Publique(INSP) ConakryGuinea Franche-Comtéuniversity(UMR 6249 chrono-environnement) BesançonFrance.

Background:Cholera is endemic in Guinea,having suffered consecutive outbreaks from 2004 to 2008 followed by a lull until the 2012 *** we describe the temporal-spatial and behavioural characteristics of cholera cases in Conakry during a three-year period,including the large-scale 2012 ***:We used the national and African Cholera Surveillance Network(Africhol)surveillance data collected from every cholera treatment centre in Conakry city from August 2011 to December *** prevalence of suspect and confirmed cholera cases,the case fatality ratio(CFR),and the factors associated with suspected cholera were described according to three periods:pre-epidemic(A),epidemic 2012(B)and post epidemic(C).Weekly attack rates and temporal-spatial clustering were calculated at municipality level for period *** was confirmed by culture at the cholera national reference ***:A total of 4559 suspect cases were reported:66,4437,and 66 suspect cases in periods A,B and C,*** the 204 suspect cases with culture results available,6%,60%,and 70%were confirmed in periods A,B,and C,*** 0.3%,the CFR was significantly lower in period B than in periods A(7.6%)and C(7.1%).The overall attack rate was 0.28%in period B,ranging from 0.17%to 0.31%across ***,a cluster of cases was identified in two districts in the northern part of *** 14%,rice water stools were less frequent in period A than in period B and C(78%and 84%).Dehydration(31%vs 94%and 89%)and coma(0.4%vs 3.1%and 2.9%)were lower during period B than in periods A and *** treatment of drinking water was less frequent in period A,while there were more reports of recent travel in period ***:The epidemic dynamic and the sociological description of suspect cases before,during,and after the large-scale epidemic revealed that the Vibrio cholerae was already present before the ***,it appeared that infected individuals react

关键词： Cholera Space-time clustering Guinea

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