A norovirus infection is characterized by sudden vomiting and diarrhea. Outbreaks are often seen on cruise ships, in ...

The Centers for Disease Control and Prevention (CDC) has confirmed the first severe case of bird flu in the United States, ...

Illness caused by norovirus typically starts suddenly, with symptoms developing 12 to 48 hours following exposure to the ...

Cases of a wretched stomach bug are surging in parts of the United States this winter, according to government data. The most ...

According to the CDC, during the week of December 5 alone, 91 outbreaks of norovirus were reported, an increase from late November.

Robert Redfield, who led the CDC during Trump's first term, said "it's possible" that U.S. intelligence agencies were helping ...

Avian flu outbreaks and increased demand during the holiday season are being blamed for high egg prices in Massachusetts ...

A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the first severe case of the ...

This year's winter COVID-19 wave is off to a late start, and experts expect cases to keep rising. Here's what to know.