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Before the games, computer scientists weren't worried about the spread of Zika. But some public health experts were. What does the data show?
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The recommendations from the Food and Drug Administration represent a major expansion in testing blood for Zika. The agency had earlier advised testing only in areas with an active outbreak.
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Mosquito repellent, long-sleeved shirts and pants are part of the plan, as well emails, texts and education about standing water. But controlling the spread of the virus is a major challenge.
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The Centers for Disease Control and Prevention expanded its advice to travelers, advising pregnant women to avoid parts of Miami Beach where the Zika virus is spreading.
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Officials say they've found the first indication that mosquitoes are transmitting Zika virus in the U.S. Four people in South Florida are infected; travel or sexual transmission has been ruled out.
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The Florida Department of Health says it's possible that a Zika infection in Miami-Dade County is not related to travel in a country where Zika is spreading. An investigation is underway.
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Federal and Utah health officials are investigating a case that may be the first instance of Zika spreading from one person to another in ways other than via mosquito bites, sex or the placenta.
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A woman in her 20s infected a man after she returned to New York City from a country where Zika is spreading. Health officials say he got infected through unprotected sexual intercourse.
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Scientists are making impressive progress in creating a vaccine for Zika. And they're using a new technology that makes vaccine development faster than ever.
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