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El Nino, the cyclical climatic phenomenon in the Pacific Ocean, is linked to shifts in cholera cases in Africa, providing an early warning that could save lives, scientists said Monday. During the years when El Nino is warming the eastern Pacific, East Africa has about 50,000 additional cholera cases a year, new research from the Johns Hopkins Bloomberg School of Public Health suggests. By contrast, the years when El Nino is not active, there were 30,000 fewer cholera cases in East Africa, according to the study published Monday in the journal Proceedings of the National Academy of Sciences. The researchers analyzed more than 17,000 annual observations from 3,710 different locations between 2000 and 2014 in Africa, which has the most...

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