Learn how Subclade K, a variant of the influenza A virus, is affecting immune responses and contributing to this year’s ...

Vaccines still are effective in decreasing the possibility of hospitalization associated with this season's "super flu," ...

A flu variant called subclade K emerged too late to be fully covered by this year's vaccine. But the flu shot can still help protect you.

The California Department of Public Health on Tuesday confirmed that a mutated strain of influenza is spreading across the state and has led to a rate of hospitalization higher than in previous flu ...

Flu-related pediatric deaths have doubled since last week, according to the CDC. Here's what to know this week, including ...

The nation is experiencing rare back-to-back rough flu seasons. A new highly contagious variant of influenza A has been spreading through families, and children have been hit particularly hard.

California public health officials cautioned more children are testing positive for the flu this season. Here are flu ...

The current flu season has hit Central Florida hard, with increased numbers of confirmed cases and fewer residents vaccinated ...

California officials warn of an increase in flu-related hospitalizations and confirm a second severe-flu-related death.

It is definitely still worth getting a vaccine. If H1N1 comes around, you can get infected with that one or even a second ...