Skip navigation

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Results 1 - 4 of 4 for Hemagglutinin HA
  1. Prevention and Antiviral Treatment of Bird Flu Viruses in People (Centers for Disease Control and Prevention)  
    Bird Flu/Prevention and Risk Factors ... Bird Flu ... Centers for Disease Control and Prevention ... Prevention and Treatment of Avian Influenza A Viruses in People - ...
  2. Bat Influenza (Flu) (Centers for Disease Control and Prevention)  
    Animal Diseases and Your Health/Specifics ... Animal Diseases and Your Health ... Centers for Disease Control and Prevention ... Bat Influenza (Flu) - CDC ... bat flu, influenza, ...
  3. Influenza Type A Viruses (Centers for Disease Control and Prevention)  
    Bird Flu/Specifics ... Bird Flu ... Centers for Disease Control and Prevention ... Information about Influenza Type A Viruses and Subtypes - CDC
  4. ... influenza vaccines mainly target the influenza surface protein hemagglutinin (HA) but can sometimes offer varying or limited protection. ...