Photo 4 of 8
Cholera
The first cholera pandemic began in 1816. The spread of a terrible intestinal infection at that time was promoted by heat, water pollution and mass crowding near rivers. It is noteworthy that outbreaks of cholera are still occurring in some parts of the world. One of the last is the outbreak of cholera on the island of Haiti in 2010, which claimed about 800 thousand lives.
