Scientists in Japan have discovered a previously unknown giant virus, offering new insight into this enigmatic category of viruses – and possibly also into the origins of multicellular life. The virus ...

PHOENIX – Long before the coronavirus pandemic, Kathleen Muldoon knew what it felt like to have her life changed by a virus. In 2013, Muldoon was teaching embryology at the Geisel School of Medicine ...

Besides serving as food for certain microbes, viruses perform some helpful functions that remain poorly understood. A ciliate, a type of single-celled microbe, swims next to Sphagnum moss, amplified ...

I’ve had it up to here with viruses lately. It’s easy in these times to wonder whether there’s anything good about them. That made me curious about why viruses exist in the first place, and where they ...

Pneumonia is caused by bacteria, viruses, fungi, or inhaling foreign objects. Children under age 5, adults over age 65, and those with chronic illnesses are at higher risk for pneumonia. Certain ...

Using genomics, evolutionary biologists test several hypotheses on the origin of viruses. New evidence suggests they may have emerged more times than previously thought. Corroborating the virus-first ...

The department said the samples were found in zip codes 77041 and 77032 in Harris County, but no human cases have been reported so far.

A number of factors influence the way the virulence of a virus — that is, how harmful it is to its host — affects its ability to survive and spread; in some cases, higher virulence may help a virus ...