Gut microbes can tamp down or boost the severity of norovirus infection, depending on where along the intestine the virus takes hold.

The placenta acts as a gatekeeper during pregnancy, but a study that shows how RSV can infect the fetus suggests it's not as impenetrable as once thought.

Drug-resistant MRSA easily spreads at home but the best protection is pretty simple: Wash your hands.

New research on proton pump inhibitors for babies finds that "being exposed to these drug levels actually puts the child at risk for having an extra infection event."

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

To track schistosomiasis, researchers used to count snails—home to the worms that cause the disease. Drones might offer a better way.

Infections during pregnancy are a risk factor for offspring developing disorders like schizophrenia and autism. Now researchers have figured out why.

Tuberculosis infection is "rarely life-long and in 90% or more of infected people, there is no possibility of TB development..."

"We found that as many as 5% of patients leaving the hospital with an infection have a readmission for that preexisting infection—that's bad."

A natural chemical may offer a way to vaccinate tomato plants and boost defenses against a pest that makes their leaves shrivel up and die.