The flu vaccine is generally about 40% effective at completely preventing influenza, according to Blumberg. The flu vaccine ...

Seasonal influenza vaccines triggered protective immune responses against the H5N1 avian influenza virus primarily in younger ...

Influenza vaccine offered comparable effectiveness in children across all severity levels of illness, a 5-year-long CDC study ...

The U.S. has developed a bird flu vaccine that can be prepared when needed. It’s not currently available because health ...