Influenza levels in the US are the highest they've been in 15 years amid winter weather and a second wave of the virus.

The winter flu season features two types of influenza. Here's what you need to know about them and how they differ.

U.S. medical services providers are seeing the greatest numbers of flu cases since the 2009-2010 flu season, the Centers for ...

Close to 8% of visits for respiratory illness to outpatient providers, including urgent cares and doctors offices, reported to the CDC this week were people sick with influenza. That is the worst ...

Flu cases have been surging across the United States, according to the latest estimates of the US Centers for Disease Control and Prevention (CDC) released on Friday. There have been at least 24 ...

(NEXSTAR) – The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests reported to the Centers for Disease Control and Prevention since the ...

The Centers for Disease Control and Prevention resumed publishing its weekly scientific report Thursday after an unprecedented pause, but information about the bird flu virus that was supposed to ...

Get Instant Summarized Text (Gist) The CDC briefly posted and then removed data indicating potential transmission of the H5N1 bird flu virus from cats to humans. This data, not included in the CDC ...

Advertisement "Seasonal influenza activity remains elevated and continues to increase across the country" for the week ending Feb. 1, CDC officials said. So far for the flu season, the CDC ...