NEW YORK -- U.S. health officials said Wednesday that there is no longer any doubt that the Zika virus causes babies to be born with abnormally small heads and other severe brain defects.
Since last year, doctors in Brazil have been linking Zika infections in pregnant women to a rise in newborns with microcephaly, or an unusually small skull. Most experts were cautious about drawing a firm connection, but now the U.S. Centers for Disease Control and Prevention says enough evidence is...
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