From Thanksgiving to New Year’s, holiday togetherness comes with a catch: a spike in the viruses that thrive when we all gather inside.

University of Manchester biologists have for the first time started to unpick the long-term biological changes associated ...

Marine viruses deploy a sophisticated Trojan horse maneuver that enables them to dismantle the energy systems of ocean ...

If necessity is the mother of invention, the coevolutionary arms race is the mother of adaptation. For parasites and hosts engaged in an ongoing battle to gain advantage, those adaptations take many ...

A second U.S. resident has died from the bird flu. The Washington Department of Health reported that the Grays Harbor County ...

The person, who had been hospitalized in King County since early November, died on Nov. 21, health officials said.

Covid-19 is declining in both virulence and infection levels among patients at the state’s largest health care system, UPMC officials said Thursday. Dr. Donald Yealy, who heads emergency medicine at ...

About 5 million people worldwide live with the autoimmune condition lupus. This condition can cause a range of symptoms, ...

Viruses were already infecting organisms some 300 million years ago, suggests a new study on what may be the oldest date yet for the emergence of an insect-infecting virus. "This is the oldest date ...