A Northwestern doctor said it's still too soon to tell if the flu shot protects against this new strain called subclade K.

A new form of the flu, which is highly contagious and aggressive, is sweeping the nation this season. A mutation of influenza ...

There are some unusual symptoms being reported with a new and mutated flu variant quickly spreading in the U.S. ahead of ...

The virus is particularly serious for children, with one doctor warning parents too look out for three key symptoms ...

There are some unusual symptoms being reported with a new and mutated flu variant quickly spreading in the U.S. ahead of ...

Chicago-area health officials are expecting a bad flu season and pushing for influenza and COVID vaccinations despite ...

Chicago-area healthcare providers are stocked up with influenza and COVID-19 vaccines, but some doctors say it's been a tough ...

The CDC estimates that there have been at least 4.6 million illnesses, 49,000 hospitalizations, and 1,900 deaths from flu ...

These are the states seeing the biggest impact from the flu tearing across the nation - The virus is particularly serious for ...

The dominant strain of the flu virus circulating this season is H3N2 subclade K, reports Dani Blum, who covers health. H3N2 ...

Taylor Decker became the fourth Detroit Lions player to pop up on the practice report this week with flu-like symptoms.