A cholera patient experimenting with remedies. Colored etching by Robert Cruikshank, 1832. The second cholera pandemic (1829-1851) reached London and Paris in 1831. In London, the disease claimed 6,536 victims and came to be known as "King Cholera". Although much is known about the mechanisms behind the spread of cholera, this has not led to a full understanding of what makes cholera outbreaks happen some places and not others. Lack of treatment of human feces and lack of treatment of drinking water greatly facilitate its spread. Bodies of water have been found to serve as a reservoir, and seafood shipped long distances can spread the disease.