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Practicing good hygiene — including washing your hands often — is one of the best ways to protect against hepatitis A. Effective vaccines are available for people who are most at risk.
SYMPTOMS
Hepatitis A signs and symptoms typically don't appear until you've had the virus for a few weeks. Signs and symptoms of hepatitis A include:
Fatigue Nausea and vomiting Abdominal pain or discomfort, especially in the area of your liver on your right side beneath your lower ribs Loss of appetite Low-grade fever Dark urine Muscle pain Yellowing of the skin and eyes (jaundice)
Signs and symptoms of hepatitis A usually last less than two months, but may last as long as six months. Not everyone with hepatitis A develops signs or symptoms.
If you've been exposed to hepatitis A, you may prevent infection by having a hepatitis A vaccine or immunoglobulin therapy within two weeks of exposure. Ask your doctor or your local health department about receiving the hepatitis A vaccine if:
A restaurant where you recently ate reports a hepatitis A outbreak Someone close to you, such as someone you live with or someone who is your caregiver, is diagnosed with hepatitis A You recently had sexual contact with someone who has hepatitis A You recently shared needles for self-injected drugs with someone who has hepatitis A
CAUSES
Hepatitis A is caused by infection with the hepatitis A virus. The hepatitis virus is usually spread when a person ingests tiny amounts of contaminated fecal matter. The hepatitis A virus infects the liver cells and causes inflammation. The inflammation can impair liver function and cause other signs and symptoms of hepatitis A.
Hepatitis A virus can be transmitted several ways, such as:
When someone with the virus handles the food you eat without first carefully washing his or her hands after using the toilet Drinking contaminated water Eating raw shellfish from water polluted with sewage Being in close contact with a person who's infected — even if that person has no signs or symptoms Having sex with someone who has the virus
COMPLICATIONS
A small number of people with hepatitis A will continue to experience signs and symptoms of infection for several weeks longer than usual. For these people, hepatitis A signs and symptoms may go away and then reappear over several weeks. Though the signs and symptoms occur over a longer period of time, this form of hepatitis A infection is not more serious than a hepatitis A infection that causes the usual signs and symptoms.
Acute liver failure
In rare cases, hepatitis A can cause acute liver failure, which is a loss of liver function that occurs suddenly. People with the highest risk of this complication include those with chronic liver diseases and older adults. Acute liver failure requires hospitalization for monitoring and treatment. In some cases, people with acute liver failure may require a liver transplant.
DIAGNOSIS
Blood tests are used to detect the presence of hepatitis A in your body. A sample of blood is taken, usually from a vein in your arm, and sent to a laboratory for testing. Your doctor may also discuss your signs and symptoms as part of making a diagnosis.
TREATMENT
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Hepatitis A treatment usually focuses on coping with signs and symptoms of hepatitis A infection. For instance:
Expect to have less energy. Many people with hepatitis A infection feel tired and have less energy for
their daily tasks. Rest when you need to. You may feel tired and sick for a few months. Find ways to cope with nausea. Nausea can make it difficult to eat. Find ways to make food more appealing. Eat small snacks throughout the day, rather than three large meals. If you're having trouble eating enough calories, avoid low-calorie foods and choose high-calorie foods. For instance, drink fruit juice or milk, rather than water. Give your liver a rest. Your liver may have difficulty processing medications and alcohol if you have hepatitis A. Review your medications, including over-the-counter drugs, with your doctor. Your doctor may recommend stopping or changing some of your medications. Stop drinking alcohol while you have signs or symptoms of hepatitis A infection.
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