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Cholera 101: An Ancient Disease Keeps Cropping Up

The latest cholera surge is in Yemen, and Haiti is still fighting the world's worst outbreak. Why does this water-born disease remain a global health risk?
A cartoon from an 1852 issue of <em>Punch</em> shows the unsanitary conditions in London slums, which led to cholera outbreaks.

Cholera can kill a person in a matter of hours.

It's a severe gastrointestinal disease that can trigger so much diarrhea and vomiting that patients can rapidly become dehydrated. They lose so much fluid that their internal organs shut down.

The water-born disease has been around for centuries, and it remains a global health risk. According to the World Health Organization, there are roughly 3 million cases a year and 90,000 deaths. The worst outbreak right now is in Haiti, linked to cholera brought by U.N. peacekeepers in 2010. Outbreaks are also flaring

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