The United States may be headed for a rough flu season, with a virus that causes more severe symptoms than the one last year ...

The United States may be heading into its second severe flu season in a row, driven by a mutated strain called subclade K ...

Health experts recommend an annual flu vaccination for everyone older than 6 months, especially as the holiday season nears.

The LA County Department of Public Health said the victim was older, had underlying health conditions and did not receive a ...

The U.S. is bracing for what is expected to be a severe flu season as a new strain is increasing cases globally ...

Learn how long the flu lasts, what symptoms occur at every stage, and what you can do to feel better and lower the risk of ...

A new strain of influenza A, called H3N2, has caused a spike in infections in other countries, including areas of the ...

The country's first-ever H5N5 bird flu case has been confirmed in Washington State, where a resident is hospitalized with a ...

A mutated strain of the flu is surging worldwide, sparking concerns about a severe flu season in the U.S. Here's what to ...

With a new flu virus variant circulating, scientists fear more sickness this winter. The vaccine may be slightly less ...

Health officials in Illinois are warning of a new and unexpected mutation that could make for a "more serious flu season" as ...