Finally getting out from under the flu? Just because you're feeling better doesn't mean you can't get other people sick. You can spread the flu for longer than you might think.
The case of a Chinese woman adds to a growing list of avian flu strains to keep an eye on, including ones that are deadly and contagious. So why are there so many?
Overall, this season's vaccine is about 36 percent effective in blunting or preventing flu, health officials say. That's better than earlier predictions, and good enough to prevent flu in thousands.
Flu drugs recommended for vulnerable people, including young children and the elderly, are getting hard to find in some parts of the country, said the Centers for Disease Control and Prevention.
It's a particularly harsh flu season. In the close quarters of dorm rooms and cafeterias and study groups, the flu will come to college campuses. And when it does, one scientist will be ready.
According to the Centers for Disease Control and Prevention, flu hospitalizations are the highest since the CDC started tracking those numbers, and we may only be halfway through the season.
Flu is widespread throughout the country, according to latest federal numbers. Those 65 and older are the most affected, but baby boomers are ending up in the hospital at an unusually high rate.
The rate of hospitalizations due to influenza is continuing to rise. Now, a study finds the risk of having a heart attack also spikes in the days after a confirmed diagnosis of flu.
The flu season started early this year and is already widespread throughout the country and intense in dozens of states. But it's not too late to get that flu shot, officials say.