Flu activity is continuing to climb across the U.S. as hospitalizations rise, updated data from the CDC shows.

Flu-like illness has reached its highest level in the U.S. in 25 years, according to updated numbers released by the CDC.

Influenza is on the rise in several states. Here are symptoms to look for if you start feeling under the weather.

U.S. flu infections still are surging, and health officials say it's a severe season that's likely to get worse.

Americans are being urged to be extra vigilant this winter, as a suite of influenza A mutations has created a dominant virus ...

In Oklahoma, flu season typically peaks at the end of January and beginning of February. So, we likely have yet to see the ...

Is it flu A or flu B, and how long is it contagious? Here's what to know about the flu virus running rampant in New Jersey, ...

Three kids in the Bay State have died from the flu in recent weeks as influenza cases spike, according to health officials ...

The Massachusetts Department of Public Health is warning of "very high and rising levels of influenza activity" across the ...

New York reports record flu hospitalizations and cases, with a rise of nearly 1,000 in a single week. Health experts urge ...

The federal government’s decision to dramatically reduce the number of vaccines it recommends for children, including the flu shot, will have “no bearing” on Illinois’ vaccine recommendations, said ...