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Why Does A Virus Cause Problems In One Region But Not Another? A Study Offers Insight

In 2015, the mosquito-borne virus Zika exploded in South America. Health experts predicted it would erupt in Africa. But a major outbreak never happened. Now scientists think they understand why. (Image credit: James Gathany/CDC/Smith Collection/Gado/Getty Images)

Read the full post at Health Care : NPR
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