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Emerg Infect Dis. Understanding the Cholera Epidemic, Haiti

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  • Emerg Infect Dis. Understanding the Cholera Epidemic, Haiti

    [Source: US Centers for Disease Control and Prevention, Emerging Infectious Diseases Journal, full PDF document (LINK). Abstract, edited.]

    Suggested citation for this article: Piarroux R, Barrais R, Faucher B, Haus R, Piarroux M, Gaudart J, et al. Understanding the cholera epidemic, Haiti. Emerg Infect Dis. 2011 Jul; [Epub ahead of print]

    Understanding the Cholera Epidemic, Haiti

    Renaud Piarroux, Robert Barrais, Beno?t Faucher, Rachel Haus, Martine Piarroux, Jean Gaudart, Roc Magloire, and Didier Raoult

    Author affiliations: Universit? de la M?diterran?e, Marseilles, France (R. Piarroux, B. Faucher, J. Gaudart, D. Raoult); Minist?re de la Sant? Publique et de la Population, Port-au-Prince, Haiti (R. Barrais, R. Magloire); Service de Sant? des Arm?es, Paris, France (R. Haus); and Martine Piarroux Universit? de Franche-Comt?, Besan?on, France (M. Piarroux)

    After onset of the cholera epidemic in Haiti in mid-October 2010, a team of researchers from France and Haiti implemented field investigations and built a database of daily cases to facilitate identification of communes most affected. Several models were used to identify spatio-temporal clusters, assess relative risk associated with the epidemic?s spread, and investigate causes of its rapid expansion in Artibonite Department. Spatio-temporal analyses highlighted 5 significant clusters (p<0.001): 1 near Mirebalais (October 16?19) next to a United Nations camp with deficient sanitation, 1 along the Artibonite River (October 20?28), and 3 caused by the centrifugal epidemic spread during November. The regression model indicated that cholera more severely affected communes in the coastal plain (risk ratio = 4.91) along the Artibonite River downstream of Mirebalais (risk ratio = 4.60). Our findings strongly suggest that contamination of the Artibonite and 1 of its tributaries downstream from a military camp triggered the epidemic.