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Hepatitis A Fact Sheet and Vaccine Information

By , About.com Guide

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Signs and Symptoms
  • jaundice (yellowing of skin or whites of eyes)
  • fatigue
  • abdominal pain
  • loss of appetite
  • nausea/diarrhea
  • fever

Long-Term Effects

  • There is no long-term (chronic) infection.
  • Once you have had hepatitis A (HAV) you can't get it again.
  • About 15% of people infected with HAV will have prolonged or relapsing symptoms over a 6-9 month period.

Transmission

  • HAV is found in the stool (feces) of persons with hepatitis A.
  • HAV is usually spread from person to person by putting something in the mouth (even though it may look clean) that has been contaminated with the stool of a person with hepatitis A.

Persons at Risk of Infection

  • Household contacts of infected persons.
  • Sexual contacts of infected persons.
  • Persons, especially children, living in regions of the U.S. with consistently increased rates of hepatitis A.
  • Persons traveling to countries where hepatitis A is common.
  • Men who have sex with men.
  • Injecting and non-injecting drug users.

Prevention

  • Hepatitis A vaccine is the best protection.
  • Short-term protection against hepatitis A is available from immune globulin. It can be given before and within 2 weeks after coming in contact with HAV.
  • Always wash your hands with soap and water after using the bathroom, changing a diaper, and before preparing and eating food.

Vaccine Recommendations
Vaccine is recommended for the following persons 2 years of age and older:

  • Travelers to areas with increased rates of hepatitis A.
  • Men who have sex with men.
  • Injecting and non-injecting drug users.
  • Persons with clotting-factor disorders (e.g. hemophilia).
  • Persons with chronic liver disease.
  • Children living in regions of the U.S. with consistently increased rates of hepatitis A.

Trends & Statistics

  • Occurs in epidemics both nationwide and in communities.
  • During epidemic years, the number of reported cases reached 35,000.
  • In the late 1990s, hepatitis A vaccine was more widely used and the number of cases reached historic lows.
  • One-third of Americans had evidence of past infection (immunity).

Information provided by The Centers for Disease Control (CDC)

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