The recent West African epidemic has intensified the search for an effective Ebola vaccine. And researchers are now saying they may be one step closer to finding one.

Only one bacterial species has been credited for causing Lyme disease in humans — until now.

As people age, cognitive functions like memory and judgment can change. And viral infections might have something to do with that.

Zika is primarily spread by mosquitoes. But that may not be the only way to contract the virus.

You may have heard of the Zika virus, which has recently gained notoriety in the news. While the illness can be dangerous in some cases, experts say the risks can be lessened with proper prevention methods.

Women who get the flu during pregnancy are at risk for serious illness, and time is often of the essence when treating the problem. One treatment may be able to help.

A US county has reported the nation's first locally acquired infection with Zika, a mosquito-borne virus — but it didn't involve mosquitoes.

Zika virus may be the new kid in town, but it's not a very welcome visitor.

The common cold sends more people to the doctor than just about any other illness. Some patients need antibiotics, but it can be hard to decide which ones. That all may be about to change.

Mosquitoes aren't just a pesky nuisance on warm summer days — many carry disease. And the newest of these mosquito-borne diseases is Zika virus.