The technical note by the Global Task Force on Cholera Control (GTFCC) discusses the use of Oral Cholera Vaccines (OCVs) for international workers and travelers in cholera-affected areas. It reviews the effectiveness of WHO-prequalified vaccines (Dukoral®, Shanchol™, and Euvichol®), emphasizing ...their role in preventing infection and reducing transmission risks.
The document highlights concerns about travelers contracting cholera in endemic regions and potentially spreading the disease upon returning home. While the overall risk is considered low, certain groups, such as humanitarian workers and travelers to high-risk areas like South Asia, face a higher exposure.
Recommendations include vaccination for emergency and relief workers who may come into direct contact with cholera patients or contaminated environments. However, routine vaccination for general travelers is not widely recommended. The note also calls for better surveillance and studies to assess the potential of vaccines in preventing international transmission.
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This document summarizes Haiti's cholera situation as of November 16, 2016. Between January and October 2016, Haiti reported 35,203 new suspected cholera cases (32% increase from 2015) and 369 deaths (56% increase). After Hurricane Matthew, cases rose dramatically, with 52% of new cases concentrated... in Grand'Anse and South departments. Since the 2010 outbreak began, Haiti had experienced 797,000 total cases and 9,353 deaths. The report identifies key factors contributing to cholera persistence: weak water and sanitation infrastructure, limited healthcare access, underfunding, population density, and mobility. Despite concerning trends, humanitarian partners were cautiously optimistic as a feared nationwide outbreak following Hurricane Matthew had not materialized, and a vaccination campaign was underway. However, the cholera response was significantly underfunded, with only 42% of requested funds received.
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The WHO Guide on Oral Cholera Vaccines in Mass Immunization Campaigns provides guidance on the planning and implementation of oral cholera vaccine (OCV) campaigns. It covers key aspects such as when and where to use OCVs, vaccine specifications, and recommendations for use in endemic areas, outbreak... settings, and complex emergencies. The document outlines steps for macro- and micro-planning, logistics, budgeting, human resource allocation, and risk communication. It also highlights challenges, including cold chain management, vaccine supply, and community engagement, ensuring that vaccination campaigns are efficient and effective in reducing cholera outbreaks.
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