Research shows that many viruses can linger in the air and on surfaces long after an infected person has left the room — ...

The number of people getting sick with influenza B has gone up for three weeks straight, now making up about a third of flu ...

Add Yahoo as a preferred source to see more of our stories on Google. As predicted, the U.S. is dealing with an intense flu season. Flu cases have skyrocketed in the past few weeks, with the country ...

Flu season is not over yet, experts warn. Is there a second wave coming? Here's how to protect yourself as influenza keeps spreading.

Flu cases are high or very high in 45 states, with doctor’s visits for flu-like symptoms at levels not seen in three decades. But you can still protect yourself. This flu season already appears to be ...

The flu epidemic continues to go down. The positivity rate and other benchmarks for the week ending on Jan. 24 have dropped ...

Plus, what the data says.

This influenza season has not offered much of a reprieve from last season, which ranks as one of the worst in the past 20 years, according to the CDC. Across the United States, the CDC estimates there ...

It's not easy to tell these health conditions apart based on their symptoms alone. Find out about the differences between these illnesses.

A mutated strain of influenza A, H3N2 subclade K, is surging worldwide, sparking concern about a severe flu season in the U.S. Here's what to symptoms to look out for.