Zika

The case of a man in the United Kingdom who had Zika virus a few years ago provides even more evidence that the virus can be transmitted through sex.

Scientists are investigating many more questions about Zika than just how to fight it with vaccination.

Demands for Zika prevention are urgent, but the road to a viable vaccine is long and expensive.

U.S. health officials are warning men who travel to countries where Zika is spreading to take steps to prevent spreading the virus through sex if their partner is pregnant.

Scientists are exploring the possibility of using genetically modified mosquitoes to curb the spread of the Zika virus.

A person in Dallas appears to have spread Zika virus to another person through sex, health officials said today.

It's not likely that there will be large outbreaks of Zika virus infections in the U.S., officials say. Here's a look at why.

Pregnant women are bombarded with advice about avoiding chemicals. Should they use mosquito repellants?