V. cholerae; Vibrio
The U.S. Centers for Disease Control and Prevention does not recommend cholera vaccines for most travelers. (Such a vaccine is not available in the United States.)
Travelers should always take precautions with food and drinking water, even if vaccinated.
When outbreaks of cholera occur, efforts should be directed toward establishing clean water, food, and sanitation, because vaccination is not very effective in managing outbreaks.
Gotuzzo E, Seas C. Cholera and other vibrio infections. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier;2007:chap 325.