11 4
The disease cholera is spread by contaminated water. In 2010 there was a series of events on the island of Haiti. Firstly, in October, there was an earthquake. Sometime later, there was a tropical storm. After several weeks this was followed by riots that made it unsafe for people to travel about. The graph shows the number of cases of cholera in Haiti. An earthquake occurred A tropical storm causes severe 4,500 flooding number of cases of cholera
4,000 3,500 3,000 2,500 2,000 1,500 1,000 500 0
Oct
Nov
Dec
Jan
months There is a health service on Haiti that tried to treat people who developed cholera. Explain why the number of cholera cases on Haiti changed during the months shown on the graph. The quality of written communication will be assessed in your answer to this question. .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... .......................................................................................................................................................... ..................................................................................................................................................... [6]
Š OCR 2015
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