Cholera's western front

"The cholera epidemics of the 19th century forged the way for the revolution in sanitation and the provision of safe sources of public water, which are the hallmark of developed countries. Nevertheless, more than 1 billion people, including much of the Haitian population, have little access to safe sources of water, and hence remain vulnerable to cholera epidemics." The Lancet, Volume 376, Issue 9757, Pages 1961 - 1965, 11 December 2010