The Trump administration said it was terminating mRNA vaccine research and shifting focus to other approaches, including a ...

CDC wastewater also shows the XFG variant — nicknamed stratus — is most common in the U.S. Stratus can cause a “razor blade” ...

We don't know the number of asymptomatic cases.” First discovered in 1955, the virus is transmitted from person to person by ...

West Nile virus most often causes a mild or moderate flu-like illness, but can be more serious for those over 65 and those ...

Viruses exist in healthy people, and some are even actively beneficial for human health. Not to mention that about 8% of our very own genome consists of ancient viral genes.

STEVENS POINT, Wis. (WSAW) - Photos of Colorado rabbits with tentacle and antler-like growths have become popular this summer ...

The first human case of West Nile Virus was reported to Columbus Public Health last week, according to a Columbus' health ...

It’s possible for a virus to spread from your PC to your phone if you’ve connected the two devices via a network or USB — so you may need to check the phone too. A virus on your computer can ...

The U.S. Centers for Disease Control and Prevention has issued a travel warning following an outbreak of a mosquito-borne ...

Studies show that about 35.3 million people are infected with the chikungunya virus each year across 180 countries and territories. While it can be deadly, it’s estimated to cause just 3,700 ...

A version of this article appears in print on July 8, 2025, Section D, Page 3 of the New York edition with the headline: Clues to How Viruses Leap Between Species.