The U.S. has terminated its partnership with the World Health Organization, opting instead to work directly with other countries and private groups on global health matters.

This strain of avian influenza emerged in 2022 and brought major losses in the Northern San Joaquin Valley and beyond.

One person who contracted it died. The fungus is commonly found in soil in the Ohio River and Mississippi River valleys, and ...

The Influenza A H3N2 virus subclade K represents a change in the basic structure of the influenza virus. One of the first ...

Despite a bad flu season, the share of residents choosing to get vaccinated against the virus has fallen. Here are 4 possible ...

Flu season in the U.S. is particularly bad this year, and a new branch of the flu family tree may be to blame.

A surprising flu experiment shows that good airflow and fewer coughs can stop the virus from spreading, even up close.

Hospitals are reporting more admissions — and more people heading to the ER. Here's what to know and what symptoms to watch ...

Even as doctor visits and hospitalizations from the flu decreased, an additional 15 children died last week. Doctors caution ...

Health experts say the U.S. flu season appears to be waning with two straight weeks of decline in measures of flu activity.

A particularly infectious subvariant of influenza is keeping emergency room numbers high and causing especially severe ...