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Cholera Outbreak - Haiti, September 2022-January 2023

Denisse Vega Ocasio et al. MMWR Morb Mortal Wkly Rep. .

Abstract

On September 30, 2022, after >3 years with no confirmed cholera cases (1), the Directorate of Epidemiology, Laboratories and Research (DELR) of the Haitian Ministry of Public Health and Population (Ministère de la Santé Publique et de la Population [MSPP]) was notified of two patients with acute, watery diarrhea in the metropolitan area of Port-au-Prince. Within 2 days, Haiti's National Public Health Laboratory confirmed the bacterium Vibrio cholerae O1 in specimens from the two patients with suspected cholera infection, and an outbreak investigation began immediately. As of January 3, 2023, >20,000 suspected cholera cases had been reported throughout the country, and 79% of patients have been hospitalized. The moving 14-day case fatality ratio (CFR) was 3.0%. Cholera, which is transmitted through ingestion of water or food contaminated with fecal matter, can cause acute, severe, watery diarrhea that can rapidly lead to dehydration, shock, and death if not treated promptly (2). Haiti is currently facing ongoing worsening of gang violence, population displacement, social unrest, and insecurity, particularly in the metropolitan area of Port-au-Prince, including Belair, Bas-Delmas, Centre-Ville, Martissant, Cité Soleil, Croix-des Bouquets, and Tabarre, creating an environment that has facilitated the current resurgence of cholera (3). This report describes the initial investigation, ongoing outbreak, and public health response to cholera in Haiti. Cholera outbreak responses require a multipronged, multisectoral approach including surveillance; case management; access to safe water, sanitation, and hygiene (WASH) services; targeted oral cholera vaccine (OCV) campaigns; risk communication; and community engagement. This activity was reviewed by CDC and was conducted consistent with applicable federal law and CDC policy.

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Conflict of interest statement

All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. No potential conflicts of interest were disclosed.

Figures

FIGURE 1
FIGURE 1
Date of notification of suspected cholera cases and 14-day case fatality ratio — Haiti, September 2022–January 2023 Abbreviation: CFR = case fatality ratio. * From case-based surveillance reporting. † From alert-based reporting.
FIGURE 2
FIGURE 2
Rolling 14-day cholera incidence (cases per 100,000 population), by department — Haiti, October 2022–January 2023
See this image and copyright information in PMC

References

    1. DAI. Haiti declared free of Cholera. Bethesda, MD: DAI; 2022. https://www.dai.com/news/haiti-declared-free-of-cholera
    1. CDC. Cholera - Vibrio cholerae infection: general information. Atlanta, GA: US Department of Health and Human Services, CDC; 2022.. Accessed December 19, 2022. https://www.cdc.gov/cholera/general/index.html
    1. United Nations. Haiti: UN sounds alarm over worsening gang violence across Port-au-Prince. New York, New York: United Nations; 2022. https://www.ungeneva.org/es/news-media/news/2022/07/haiti-un-sounds-alar...
    1. Rubin DHF, Zingl FG, Leitner DR, et al. Reemergence of cholera in Haiti. N Engl J Med 2022;387:2387–9. 10.1056/NEJMc2213908 - DOI - PMC - PubMed
    1. Doctors Without Borders. Haiti: shortages of fuel, water and transportation threaten medical care. Toronto, Canada: Doctors Without Borders; 2022. https://www.doctorswithoutborders.ca/article/haiti-shortages-fuel-water-...