Hepatitis A (HAV) Infection

Washing hands thoroughly and often is one of the best ways to prevent the spread of HAV.

Hepatitis is an inflammation of the liver. It has many causes. One of the causes is infection with a virus called the hepatitis A virus (HAV). This virus most often spreads through infected food or water that has been contaminated by infected stool.

It can also spread from person to person. This could happen if someone does not wash his or her hands after being in contact with infected stool — for example, after using the bathroom or changing a dirty diaper. It can also be passed on by having sex with an infected person.

Hepatitis A spreads more easily in group settings such as in day care centers or nursing homes. Unlike hepatitis B and C, HAV generally runs its course and does not become a long-term (chronic) illness. It may last several weeks to 6 months. It rarely causes long-term problems. In very rare cases it can lead to liver failure, the need for a liver transplant, or death. HAV can be prevented by a vaccine.

Symptoms of hepatitis A infection

Symptoms usually appear about 2 to 6 weeks after exposure to the virus. Possible symptoms include:

• Fever
• Tiredness and weakness
• Pain in the stomach area or over the liver
• Loss of appetite
• Upset stomach (nausea), vomiting, or diarrhea
• Yellowing of the skin and whites of the eyes (jaundice)
• Itchy skin
• Dark urine and light colored stools

Diagnosing hepatitis A

A sample of blood is taken and tested for HAV. Other tests may be done to check the health of your liver.

Treating hepatitis A

• There is no specific treatment for hepatitis A. The virus will run its course.
• Treat symptoms as you would flu symptoms. Drink fluids and get plenty of rest.
• During recovery, avoid fatty foods. Fatty foods may cause vomiting and are best avoided during the acute phase of the illness.
• Do not drink alcohol, which can damage the liver.
• Do not take any over-the-counter medicines without checking with your healthcare provider. The liver processes many medicines, and certain medicines can be harmful to the infected liver. Limit the amount of acetaminophen (Tylenol) you take to no more than 2 grams per day. 
• If you know you have been exposed to hepatitis A in the past 2 weeks, tell your healthcare provider.
• To reduce your risk of HAV after exposure, it is recommended that you have a dose of the vaccine.
• An injection of immune globulin (IG) can also offer short-term protection. IG has antibodies from the body’s immune system that destroy HAV.

Preventing hepatitis A from spreading

A person with hepatitis A can spread the virus to others, even before symptoms appear. He or she can keep spreading the virus for a few days after symptoms start.

Take these precautions to prevent HAV from spreading:

• Wash hands often. Always wash hands after using the bathroom or changing diapers, and before preparing food or eating. Work up a good lather with soap and warm water. Scrub for at least 10 to 15 seconds, then rinse.
• Avoid work and public places until symptoms are gone.
• When traveling to areas where hepatitis A is common, avoid drinking water that may not be clean. Avoid eating uncooked fruits or vegetables.
• Once you have had hepatitis A, you cannot get it again. You no longer need the hepatitis A vaccine, but you should consider vaccination against hepatitis B, a more serious form of hepatitis.
• The hepatitis A vaccine is an inactive form of the virus. This means you cannot get hepatitis A from the vaccine. The vaccine is given in 2 injections that are 6 months apart.
• Since 2006, the hepatitis A vaccine has been recommended for all infants born in the U.S. 
• People living with you should be vaccinated against hepatitis A and B if they have not done so already.

Hepatitis A (HAV) Infection

Washing hands thoroughly and often is one of the best ways to prevent the spread of HAV.

Hepatitis is an inflammation of the liver. It has many causes. One of the causes is infection with a virus called the hepatitis A virus (HAV). This virus most often spreads through infected food or water that has been contaminated by infected stool.

It can also spread from person to person. This could happen if someone does not wash his or her hands after being in contact with infected stool — for example, after using the bathroom or changing a dirty diaper. It can also be passed on by having sex with an infected person.

Hepatitis A spreads more easily in group settings such as in day care centers or nursing homes. Unlike hepatitis B and C, HAV generally runs its course and does not become a long-term (chronic) illness. It may last several weeks to 6 months. It rarely causes long-term problems. In very rare cases it can lead to liver failure, the need for a liver transplant, or death. HAV can be prevented by a vaccine.

Symptoms of hepatitis A infection

Symptoms usually appear about 2 to 6 weeks after exposure to the virus. Possible symptoms include:

• Fever
• Tiredness and weakness
• Pain in the stomach area or over the liver
• Loss of appetite
• Upset stomach (nausea), vomiting, or diarrhea
• Yellowing of the skin and whites of the eyes (jaundice)
• Itchy skin
• Dark urine and light colored stools

Diagnosing hepatitis A

A sample of blood is taken and tested for HAV. Other tests may be done to check the health of your liver.

Treating hepatitis A

• There is no specific treatment for hepatitis A. The virus will run its course.
• Treat symptoms as you would flu symptoms. Drink fluids and get plenty of rest.
• During recovery, avoid fatty foods. Fatty foods may cause vomiting and are best avoided during the acute phase of the illness.
• Do not drink alcohol, which can damage the liver.
• Do not take any over-the-counter medicines without checking with your healthcare provider. The liver processes many medicines, and certain medicines can be harmful to the infected liver. Limit the amount of acetaminophen (Tylenol) you take to no more than 2 grams per day. 
• If you know you have been exposed to hepatitis A in the past 2 weeks, tell your healthcare provider.
• To reduce your risk of HAV after exposure, it is recommended that you have a dose of the vaccine.
• An injection of immune globulin (IG) can also offer short-term protection. IG has antibodies from the body’s immune system that destroy HAV.

Preventing hepatitis A from spreading

A person with hepatitis A can spread the virus to others, even before symptoms appear. He or she can keep spreading the virus for a few days after symptoms start.

Take these precautions to prevent HAV from spreading:

• Wash hands often. Always wash hands after using the bathroom or changing diapers, and before preparing food or eating. Work up a good lather with soap and warm water. Scrub for at least 10 to 15 seconds, then rinse.
• Avoid work and public places until symptoms are gone.
• When traveling to areas where hepatitis A is common, avoid drinking water that may not be clean. Avoid eating uncooked fruits or vegetables.
• Once you have had hepatitis A, you cannot get it again. You no longer need the hepatitis A vaccine, but you should consider vaccination against hepatitis B, a more serious form of hepatitis.
• The hepatitis A vaccine is an inactive form of the virus. This means you cannot get hepatitis A from the vaccine. The vaccine is given in 2 injections that are 6 months apart.
• Since 2006, the hepatitis A vaccine has been recommended for all infants born in the U.S. 
• People living with you should be vaccinated against hepatitis A and B if they have not done so already.

Hepatitis A (HAV) Infection

Washing hands thoroughly and often is one of the best ways to prevent the spread of HAV.

Hepatitis is an inflammation of the liver. It has many causes. One of the causes is infection with a virus called the hepatitis A virus (HAV). This virus most often spreads through infected food or water that has been contaminated by infected stool.

It can also spread from person to person. This could happen if someone does not wash his or her hands after being in contact with infected stool — for example, after using the bathroom or changing a dirty diaper. It can also be passed on by having sex with an infected person.

Hepatitis A spreads more easily in group settings such as in day care centers or nursing homes. Unlike hepatitis B and C, HAV generally runs its course and does not become a long-term (chronic) illness. It may last several weeks to 6 months. It rarely causes long-term problems. In very rare cases it can lead to liver failure, the need for a liver transplant, or death. HAV can be prevented by a vaccine.

Symptoms of hepatitis A infection

Symptoms usually appear about 2 to 6 weeks after exposure to the virus. Possible symptoms include:

• Fever
• Tiredness and weakness
• Pain in the stomach area or over the liver
• Loss of appetite
• Upset stomach (nausea), vomiting, or diarrhea
• Yellowing of the skin and whites of the eyes (jaundice)
• Itchy skin
• Dark urine and light colored stools

Diagnosing hepatitis A

A sample of blood is taken and tested for HAV. Other tests may be done to check the health of your liver.

Treating hepatitis A

• There is no specific treatment for hepatitis A. The virus will run its course.
• Treat symptoms as you would flu symptoms. Drink fluids and get plenty of rest.
• During recovery, avoid fatty foods. Fatty foods may cause vomiting and are best avoided during the acute phase of the illness.
• Do not drink alcohol, which can damage the liver.
• Do not take any over-the-counter medicines without checking with your healthcare provider. The liver processes many medicines, and certain medicines can be harmful to the infected liver. Limit the amount of acetaminophen (Tylenol) you take to no more than 2 grams per day. 
• If you know you have been exposed to hepatitis A in the past 2 weeks, tell your healthcare provider.
• To reduce your risk of HAV after exposure, it is recommended that you have a dose of the vaccine.
• An injection of immune globulin (IG) can also offer short-term protection. IG has antibodies from the body’s immune system that destroy HAV.

Preventing hepatitis A from spreading

A person with hepatitis A can spread the virus to others, even before symptoms appear. He or she can keep spreading the virus for a few days after symptoms start.

Take these precautions to prevent HAV from spreading:

• Wash hands often. Always wash hands after using the bathroom or changing diapers, and before preparing food or eating. Work up a good lather with soap and warm water. Scrub for at least 10 to 15 seconds, then rinse.
• Avoid work and public places until symptoms are gone.
• When traveling to areas where hepatitis A is common, avoid drinking water that may not be clean. Avoid eating uncooked fruits or vegetables.
• Once you have had hepatitis A, you cannot get it again. You no longer need the hepatitis A vaccine, but you should consider vaccination against hepatitis B, a more serious form of hepatitis.
• The hepatitis A vaccine is an inactive form of the virus. This means you cannot get hepatitis A from the vaccine. The vaccine is given in 2 injections that are 6 months apart.
• Since 2006, the hepatitis A vaccine has been recommended for all infants born in the U.S. 
• People living with you should be vaccinated against hepatitis A and B if they have not done so already.