Researchers have analysed anonymized phone records of tens of millions of people in low-income countries. Critics question whether the benefits outweigh the risks

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A chance meeting on a minibus in Costa Rica inspired a young American to start crowdfunding healthcare for people all over the world. So what happens when Silicon Valley meets some of the world’s poorest countries? Andrew Hankinson went to Haiti to find out

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At the Mirebalais Hospital in Haiti’s central plateau, Dr. Louise Ivers and Dr. Roman Jean-Louis are examining a baby girl who was born in early July with microcephaly, a smaller-than-normal skull often associated with Zika infections

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…there’s new evidence that the toll from Haiti’s ongoing cholera epidemic is significantly higher than official tallies suggest. Meanwhile, survivors appear to be making headway in a legal and public relations campaign to gain compensation from the agency they blame for introducing cholera to the island nation: the United Nations

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An outbreak of cholera in Haiti that began in 2010 is still killing people. Why have attempts to get it under control failed? Rose George reports

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