Areas affected by cholera epidemics
In October 2010, a major cholera epidemic started in Haiti, affecting also the neighbouring country Dominican Republic. The outbreak was still ongoing at the end of 2011 with 522 335 cases including 7001 deaths reported by 25 December in Haiti.
The lake Chad basin area in central Africa was also affected by cholera since November 2009, with a cross border transmission occurring between the neighbouring countries of Cameroon, Chad, Niger and Nigeria. As of early 2012, the outbreak has slowed down, but is still ongoing in Cameroon and Chad.
Democratic Republic of the Congo faced an epidemic in areas where the disease had not been present in the last 9 years along the Congo river in the western part of the country. At the same time, cholera endemic areas in the Eastern part of the country are still reporting cases.
Cases in Papua New Guinea continued to be reported in 2010 and 2011 affecting the following provinces: NCD, Gulf, Western, East Sepik, Morobe, Madang and Central Province. The disease has been declared to be endemic by the health authorities.