H7N9 — is detected in at a poultry farm; scientists learn past human flu exposure may provide some immunity to H5N1.

To maintain vaccine efficacy, WHO regularly updates influenza vaccine strains based on global epidemiological, virological, ...

Influenza cases are up 192% over the 5-year average, and the state’s 50 flu deaths so far are the most since 2017-18, when ...

Flu-related deaths hit a seven-year high in January and February, the two months that usually account for the height of flu season, according to a Stateline analysis of preliminary federal statistics.

The recommendations were made following a meeting that included experts from the FDA, the Centers for Disease Control and Prevention, and the Department of Defense.

Mississippi state and federal officials have confirmed an outbreak of a strain of bird flu not reported in the U.S. since ...

Very few humans have gone up against bird flu. But we've all dealt with seasonal flu for years. Some of our immune systems ...

Existing antivirals may be less effective against this H5N1 bird flu strain, and prevention measures, such as avoiding raw milk consumption and reducing exposure in dairy workers, may be the most ...