Usually, after the incubation that means a few days, the symptoms include fever, skin rashes, conjunctivitis, muscle and joint pain, malaise, and headache., which last for 2 – 7 days. Zika virus can also produce a range of neurological disorders. But things are different for pregnant women. In Latin America, thousands of babies have been born with microcephaly and health officials are working to help prevent cases in the United States as the summer mosquito season arrives. Two vaccines are already in the trial phase. The U.S. National Institutes of Health (NIH) said it will study some U.S. athletes and Zika during the upcoming Summer Olympics and Paralympics in Brazil. The NIH plans to recruit at least 1,000 athletes, coaches and staffers for its study. Some athletes from several countries have already said they’ll skip the games.