Hep A

Hepatitis A

Hepatitis A is a contagious liver disease caused by the hepatitis A virus (HAV). The virus is most commonly spread by eating contaminated food or drinking contaminated water, but it can also be spread by close person-to-person contact such as household or sexual contact with an infected person. Hepatitis A is the most common vaccine-preventable disease acquired during travel.

The symptoms of HAV differ from person to person. Some infected individuals may not display any symptoms but still pose a transmission risk to others. Symptoms may include yellow skin or eyes (jaundice), tiredness, stomachache, fatigue, loss of appetite, or nausea.

The hepatitis A vaccine is 94-100% effective in preventing the disease. Protection begins approximately 2-4 weeks after the 1st injection. A  2nd injection results in long-term protection.

Learn more about hepatitis A and the vaccine to prevent it in adolescents at adolescentvaccination.org and adults at adultvaccination.org.


Adolescent Vaccination Recommendation: Hepatitis A


Hepatitis B

American Academy of Family Physicians (AAFP)

Hepatitis A

American Academy of Family Physicians (AAFP)

Hepatitis A Information for the Public

Centers for Disease Control and Prevention (CDC)

Hepatitis Infection Map

HepVu: Interactive online resource that visualizes the first standardized state-level estimates of people with past or current Hepatitis C infection across the United States.

Hepatitis Risk Assessment

Centers for Disease Control and Prevention (CDC): Take this 5 minute hepatitis risk assessment and get a personalized report

The ABCs of Viral Hepatitis

Centers for Disease Control and Prevention (CDC): Fact Sheet

Viral Hepatitis (A, B, C, D, E) Causes, Symptoms, Diagnosis, Treatment, & Pathology (Video)

Osmosis - Youtube Channel