Previous seasonal flu infections and vaccinations may protect us against infection from the highly pathogenic H5N1 bird flu outbreak.

Emergency room visits with influenza are now "very high" nationwide, the Centers for Disease Control and Prevention said Friday, in this week's update on the winter respiratory virus season.

New research led by scientists at La Jolla Institute for Immunology (LJI) suggests that many people already have immune cells ...

Highly pathogenic H5N1 avian influenza A virus (HPAI H5N1) remains a low risk to the general public, and public health experts in the United States believe that available treatments and vaccines, as ...

Flu is taking off in the U.S., with 40 states reporting high or very high levels of flu-like illness last week.

A recent study shows influenza vaccination provides consistent protection for children against all levels of severe flu ...