The largest study to follow women infected with Zika while they were pregnant finds about 6 percent of children had problems at birth, but 14 percent had complications by their first birthday.
Yaritza Martinez was infected with the Zika virus when she was 12 weeks pregnant. Doctors in Washington, D.C., are studying her son and other children to see if the virus has affected their health.
Scientists were worried about Zika at the 2016 Olympics in Brazil. But a recent study found there was no evidence of the virus in athletes and staff. They did, however, find other viruses.
About 5 percent of pregnant women infected with Zika in Puerto Rico and other U.S. territories last year had babies with birth defects, says the federal health agency. And the risk isn't over.
The vaccine against Zika vaccine was developed by the Army, with the government paying for clinical trials, too. Health officials want to be sure drugmaker Sanofi Pasteur doesn't make it unaffordable.
Travelers infected with the Zika virus in the Caribbean brought it to South Florida multiple times before officials realized it had reached the U.S., an analysis of virus genomes finds.
The Zika virus continues to impact a small number of pregnant women and their babies in the U.S., and there is no sign of it slowing down. "Zika is here to stay," the CDC's acting director says.
Puerto Rico has experienced many more cases of Zika virus than the continental U.S. But health and educational services are scarce on the islands for children born with disabilities.
Women who were infected with Zika virus while abroad and then came to the U.S. had complications about 6 percent of the time, a study finds. First-trimester exposure was linked to more birth defects.
More than 2,600 pregnant women on the island have tested positive for Zika. While the number of confirmed cases of fetal abnormalities has been small, officials are concerned about long-term effects.
Scientists are racing to create a vaccine. The latest effort being tested uses inactivated virus, a technique that has been used successfully to fight other diseases, and human volunteers.
The Centers for Disease Control and Prevention now urges pregnant women to "consider postponing travel to all parts of Miami-Dade County." Zika is on the way to becoming an endemic disease in the U.S.
But they'll have to wait a while. The portion of the $394 million Congress allocated to help pregnant women find out more quickly if they have Zika isn't expected to get to strained labs until 2017.
Men who may have Zika should wait at least six months before having unprotected sex with partners trying to conceive, regardless of whether the men ever developed any symptoms, the CDC now says.
The deal to fight the mosquito-borne virus came after lawmakers dropped a controversial provision to block payments to Planned Parenthood for women's health care.
Pregnant women in South Florida can get free Zika tests through the state's health department. But delays in getting back the results are heightening worries and may affect medical options.
There are only two must-pass items on the agenda: a short-term funding bill to keep the government running past Sept. 30, and a separate funding bill to combat the spread of the Zika virus.
That's what 76 percent said in a recent Kaiser Family Foundation survey. Half the respondents also said they'd be uncomfortable traveling to places in Florida where mosquitoes are spreading Zika.
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.
