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- Drinking water contaminated by raw sewage
- Eating food contaminated by the hepatitis A virus, especially if it has not been properly cooked
- Eating raw or partially cooked shellfish contaminated by raw sewage
- Sexual contact with a partner infected with the hepatitis A virus, especially as oral-anal contact
- Having close contact with an infected person—although the virus is generally not spread by casual contact
- Using household items that were used by an infected person and not properly cleaned
- Having oral-anal sexual contact with an infected person
- Traveling to or spending long periods of time in a country where hepatitis A is common or where sanitation is poor
- Working as a childcare worker, changing diapers or toilet training children
- Being in daycare centers
- Being institutionalized
- Injecting drugs—especially if you share needles
- Receiving plasma products, common in conditions like hemophilia
- Loss of appetite
- Nausea and vomiting
- Abdominal pain or discomfort
- Yellowing of the eyes and skin—jaundice
- Darker colored urine
- Light or chalky colored stools
- Blood test—to look for signs of hepatitis A
- Liver function studies
- Help you stay as comfortable as possible.
- Prevent the infection from being passed to others.
- Prevent stress on the liver while it's healing. Mainly done by avoiding certain substances like specific medications or alcohol.
- Wash your hands often with soap and water.
- Wash your hands before eating or preparing food.
- Avoid using household utensils that a person with hepatitis A may touch. Make sure all household utensils are carefully cleaned.
- Avoid sexual contact with a person with hepatitis A.
- Avoid injected drug use. If you do, do not share needles.
If you travel to a high risk region, take the following precautions:
- Drink bottled water
- Avoid ice chips
- Wash fruits well
- Eat well-cooked food
- Immune (Gamma) Globulin—Temporary protection from hepatitis A. It can last about 3-6 months. It must be given before exposure to the virus or within 2 weeks after exposure.
Hepatitis A vaccine—Highly effective in preventing infection. It provides full protection 4 weeks after the first injection. A second injection provides long-term protection.
The vaccine should be considered for:
- All children aged 12-23 months
- Children aged 24 months or older who are at high risk and have not been previously vaccinated
- People traveling to areas where hepatitis A is prevalent (The Centers for Disease Control and Prevention's Traveler's Health website shows which areas have a high prevalence of hepatitis A)
- Men who have sex with men
- Injection drug users
- People who are at risk because of their job, such as lab workers
- People with chronic liver disease
- People with blood-clotting disorders, such as hemophilia
- People who will have close contact with an adopted child from a medium- or high-risk area
- People who desire immunity to hepatitis A
- Reviewer: David L. Horn, MD
- Review Date: 02/2016
- Update Date: 05/02/2014