Cholera in New York (and Iraq)

In light of the recent outbreak of cholera in Iraq, I've been researching an essay that looks at the wave of cholera outbreaks that swept through New York in the 19th century. It's as bad as you'd expect, with the victims (almost always poor) blamed for bringing this upon themselves. Much of the propaganda was targeted at the Irish for their drinking. Ironically, distilled spirits were the only safe beverage to prevent the scourge.