All age groups in the United States are experiencing a "high severity" of influenza cases among all age groups for the first ...

A devastating wave of respiratory illnesses is sweeping across 40 US states, with millions already affected.

The rate of Americans visiting doctors’ offices for flu-like illness is continuing to reach record levels, new CDC data ...

A CDC study has found H5N1 bird flu antibodies in veterinarians who had no symptoms and no knowledge they had been working ...

The Centers for Disease Control and Prevention reports that flu cases in the United States this season are at their highest levels since the 2009–2010 swine flu. For the first time, the death rate for ...

To reduce the odds of catching the flu and colds, experts say consider tried-and-true prevention methods like hand washing and mask wearing.

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

So far this season, the CDC estimates there have been at least 24 million flu illnesses, 310,000 hospitalizations and 13,000 ...

Here's what parents need to know about the influenza vaccine for babies and children, plus why it's so important.

The following 14 states, along with New York City, are now at the CDC’s highest tier of influenza activity: Alabama, Georgia, Louisiana, Massachusetts, Michigan, Minnesota, Mississippi ...

“[Another strain is] not a great sign, because we don’t want co-circulating influenza in any population ... for Disease Control and Prevention (CDC)] working closely with state and local ...

Others have resulted in gutting key parts of the agency's website. Data from the CDC's Youth Risk Behavior Surveillance System, a nationwide survey of high school students about mental health ...