Did the Zika virus put a heavier burden on women than it did on men when the virus swept through Brazil? A new report by Human Rights Watch argues that the answer is yes

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Fall in cases brings end to the emergency 18 months after the virus hit headlines around the world

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The unrelenting struggle of raising Brazil’s Zika babies. Baby Duda sat in bed, a pink barrette in her hair. She was ready to go home after a month in the hospital — when she began gasping for breath. Nurses rushed to her side with emergency oxygen

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The World Health Organization on Thursday urged athletes and travelers planning to attend the Olympics in Brazil, the epicenter of the Zika epidemic, to take a series of steps to guard against infection, but the agency made it clear that it was not calling for the Summer Games in August to be canceled or postponed

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The viral strain scientists isolated from two nonhuman primates is identical to the one circulating among humans

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Scientists have been trying to figure out when and where it entered Brazil, where it was first detected in March 2015. Speculation has focused on the influx of fans for the World Cup in June and July 2014, or for a championship canoe race in September 2014. But a new genome analysis suggests the virus had likely been spreading there long before either event

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Cases may signal start of anticipated wave of birth defects in country hit hard by Zika virus

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A team of U.S. government disease detectives Monday launched an eagerly anticipated research project in Brazil designed to determine whether the Zika virus is really causing a surge of serious birth defects

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