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Hepatitis A

Organism, Causative Agent, or Etiologic Agent

Hepatitis A is caused by infections with the hepatitis A virus (HAV). HAV is a picornavirus and humans are the only natural host. HAV is a virus that causes acute inflammation of the liver. HAV infection results in lifelong immunity to further infections. HAV does not lead to chronic disease. According to Centers for Disease Control and Prevention (CDC), 33% of American citizens have been infected with HAV.

General Information and Resources

Mailing Address

Disease Surveillance and Epidemiology Section
Mail Code: 3082
P.O. Box 149347
Austin, TX 78714-9347
United States

Physical Address

Disease Surveillance and Epidemiology Section
Moreton Building, Suite M-631
1100 West 49th Street
Austin , TX 78756-3199
United States