Who is most at risk for acquiring HAV infection?

People with increased risk for HAV infection include the following:

  • Certain travelers to countries with high or intermediate endemicity of HAV infection
  • Men who have sex with men (MSM)
  • People who have clotting-factor disorders, such as hemophilia
  • Users of injection and non-injection illegal drugs
  • People who have oral-anal sexual contact with a partner who has hepatitis A
  • People working with nonhuman primates

If you have questions about the Hepatis A vaccine, consult your doctor before vaccination.

For more information about the vaccination process, including side effects, download the Vaccine Information Sheet here.