The discovery of a critical protein could unlock new therapies to treat or even prevent West Nile and Zika viruses, researchers say.

A protein called IL-36g could keep the herpes virus from spreading to the nervous system in women, researchers have discovered.

An antibody that gunks up the machinery that flu viruses use to replicate in mice could be the first step towards a universal flu vaccine.

A new antiviral drug could offer a groundbreaking advance in fighting influenza.

New research may explain why rotavirus causes severe, life-threatening disease in some people and only mild disease in others.

A new discovery sheds light on a kind of bacterial "immune system" that defends microbes from attack and could be key to fighting disease in the future.

Flu season has begun. Get tips from the experts about how to best avoid getting sick or infecting others.

A unique motion may let parvovirus, which usally affects dogs, infect multiple different species, from cats to raccoons.

In animal tests, a new vaccine offered the strongest type of immunity against genital herpes.

Creating a mutation in a key protein could stop the Ebola virus from evading immune defenses and making its hosts sick, researchers say.