Epidemiological Update - Cholera - 29 November 2016
Cholera in the Americas - Situation summary
Between epidemiological week (EW) 1 and EW 43 of 2016, a total of 35,755 cholera cases were reported in four countries of the Americas: the Dominican Republic (1,097), Ecuador1 (1), Haiti (34,656), and Mexico (1). Of the total cases, 97% were reported in Haiti. Table 1 shows the number of cholera cases reported in selected countries between 2010 and 2016.
In Haiti, a total of 34,656 suspected cholera cases, including 339 related deaths (case fatality rate: 1%), were reported from EW 1 to EW 43 of 2016.
On October 4 (EW 40), Hurricane Matthew landed in the commune of Les Anglais, Sud Department. The hurricane has seriously affected the departments of Sud and Grand'Anse, optimizing environmental and social conditions to facilitate the transmission of cholera. The intensified cholera surveillance established after Hurricane Matthew further demonstrates the impact of the event on Haiti. There has been an increase in the number of suspected cholera cases and the daily case numbers, which have increased to two or more times the numbers observed prior to the hurricane (Figure 1). From EW 40 to EW 45, the departments of Grand Anse and Sud contributed 23% and 26% respectively of the total cholera cases reported nationwide. These Departments correspond to 4% and 7% of the total population of Haiti, respectively.