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

Sonya Stokes, an emergency room physician in the San Francisco Bay Area, braces herself for a daily deluge of patients sick ...

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

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.

Outpatient health care visits for flu-like illnesses are at their highest levels in 15 years, according to data updated ...

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.

What you need to know about bird flu. Public health experts are closely watching avian influenza, which has affected chickens ...

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 ...

As cases of bird flu continue to surge across the U.S., Americans are largely feeling the symptoms in their pocketbooks rather than their bodies. Chickens, cattle and pricetags are the bird flu's ...