The WHO has described it as a seasonal respiratory infection, with symptoms ranging from fever and cough to body aches, sore throat and congestion.

Of particular concern, scientists say, is the mismatch of the flu virus and available vaccines. Here's what a UVA Health ...

A dangerous new super flu is spreading fast across the US — and it's not your typical seasonal virus. Hospitalizations are ...

Everyone loves a little holiday magic, but what no one wants is a holiday sickness. Numbers from the U.S. Centers for Disease ...

Health officials are warning people about a flu virus called H3N2 that is spreading in the United States and other countries ...

Health leaders are raising concerns about subclade K, a variant of influenza A that has mutated from the original H3N2 strain ...

Johns Hopkins experts attribute low RSV numbers to population immunity and new vaccines, while warning about a potentially ...

Ahead of the holiday tourist rush, city health officials in New York City reported nearly 14,000 flu cases in the first week of December.

The mutation, known as subclade K, has already caused a surge in flu cases in Australia, Canada, Japan, and the U.K.

Last year’s flu season was the roughest in nearly a decade. “We generally don’t have two bad flu seasons back to back,” said ...

Known as subclade K, a new, mutated flu strain that has dominated in Europe and Asia is now rapidly spreading across the US.

Experts share tips to protect children and family members from the flu -- including the subclade K variant -- ahead of the ...