San Mateo County public health officials reported finding H5N1 bird flu in a pet cat and a backyard poultry flock.

With data showing a significant rise in flu cases nationwide, medical experts are describing it as the worst flu season since ...

The CDC allegedly posted and swiftly deleted data suggesting bird flu could spread from cats to people in a table included in ...

More than 156 million chickens, ducks, turkeys and other fowl have been slaughtered across the United States since the ...

Flu has surged to high levels across the US, straining hospitals. Experts discuss 2024-25 flu season trends, symptoms to ...

Schools around the U.S. are closing due to surges of flu and other illnesses, which are sickening students and staff. Here's what parents need to know.

South Carolina is one of a handful of states with the highest number of flu cases in the United States, according to data ...

Flu A and flu B are two different strains of influenza, explains Thomas Russo, M.D., professor and chief of infectious ...

While we often refer to it as "the flu," the influenza virus has several strains, with flu A and flu B considered the most ...

For the week ending Jan. 25, seasonal flu activity remains high and increasing. Clinical laboratories tested 129,378 ...

On the CDC's flu activity map, at least 41 states are shades of red which reflects high or very high activity, including ...