A leading cholera expert has called on the WHO to mobilise a new vaccine so it can be used in Haiti's cholera epidemic.
Stephen Calderwood, chief of the infectious diseases division at the Massachusetts General Hospital, United States, said the vaccine — Shanchol — is cheap and effective and should be rolled out with minimum delay.
The outbreak suddenly appeared in small communities along the Artibonite River, 60 miles [96.5 km] north of the capital Port-au-Prince, on 21 Oct 2010. Its origin has not been determined with certainty but the popular belief is that the disease arrived with infected UN soldiers from Nepal. They were stationed in a rural base near the river where the outbreak first started. Cholera is endemic in Nepal whereas Haiti has not had a recorded cholera case in the last 50 years.