The latest data on respiratory illness in the United States shows that shoppers and merry-makers are spreading more than just holiday cheer: They’re also passing around germs. In many cases, it’s a ...

It may feel like you are surrounded by sniffles and coughs, but flu season activity is still low in many parts of the U.S.

So far, just 36 percent of U.S. children have been vaccinated—down 23 percent from a half-decade earlier, likely due to ...

The UK is facing a surge of hospitalizations fueled by the novel variant subclade K. And the U.S. is likely next.

The U.S. is seeing a post-Thanksgiving spike in influenza, data released by the Centers for Disease Control and Prevention on ...

A new mutation of influenza is causing an increase in flu cases and hospitalizations in Texas and across the country early in this year’s flu season.

Scientists have captured an unprecedented, real-time view of influenza viruses as they move across and slip inside human ...

Norovirus, also known as the “stomach flu” or “winter vomiting sickness,” is active in California and across the nation. But ...

While flu cases are down compared to recent years, Florida saw an uptick in positive cases and hospitalizations.

Influenza cases are slowly rising in Illinois, signaling the beginning of flu season. Is the cold weather to blame?

The H5N1 avian influenza virus—commonly known as bird flu—has been causing outbreaks in dairy cows in the United States since ...

Since bird flu was first identified in U.S. dairy herds in March 2024, Wisconsin dairy herds have managed to avoid the virus - until now.