HAV is a liver disease caused by the hepatitis A virus. In the United States, HAV can occur in situations ranging from isolated cases of disease to widespread epidemics. Good handwashing and proper sanitation can help prevent spread. Vaccines are also available for long-term prevention of HAV infection in persons 2 years of age and older. Immune globulin is available for short-term prevention of hepatitis A.
HBV is a serious disease caused by a virus that attacks the liver. HBV can cause lifelong infection, cirrhosis (scarring) of the liver, liver cancer, liver failure, and death. HBV can affect anyone. Each year in the United States, more than 200,000 people of all ages get hepatitis B and close to 5,000 die of sickness caused by HBV. If you have had other forms of hepatitis, you can still get hepatitis B. Vaccines are available for long-term protection of HBV infection. Hepatitis B immune globulin is available for post exposure protection.
HCV is a liver disease caused by the hepatitis C virus, which is found in the blood of persons who have this disease. HCV is serious for some persons, but not for others. Some do not feel sick from the disease. Most persons who get HCV carry the virus for the rest of their lives and have some liver damage. Others may develop cirrhosis (scarring) of the liver and liver failure, but this process can take many years.
HAV is found in the stool of persons with hepatitis A. HAV can affect anyone, and is usually spread from person to person by putting something in the mouth that has been contaminated with the stool of a person infected with hepatitis A. HAV can spread in areas where there are poor sanitary conditions or where good handwashing is not observed. Persons with HAV can spread it to household members or sexual partners.
A person can spread HAV about one week before symptoms appear and during the first week of symptoms. Persons with no symptoms can still spread the virus. This often happens with young children who unknowingly spread HAV to older children and adults.
Casual contact as in the usual office, factory or school setting, does not spread the virus.
Women who are infected with HBV can give it to their babies. Babies who get HBV at birth may have the virus for the rest of their lives. They can spread the disease and get cirrhosis of the liver or liver cancer.
Sometimes, people who are infected with HBV never recover fully from the infection. They can remain infectious for the rest of their lives. In the United States, about one million people carry HBV.
HBV is not spread through food or water or by casual contact.
The infection is spread by contact with the blood of an infected person. Almost 4 million Americans are infected with the Hepatitis C virus.
Hepatitis C virus is not spread by:
You are at risk if you:
You are at risk if you:
One out of 20 people in the United States will get HBV at some time if not vaccinated.
You are at risk if you:
Many people who are at risk for HCV are at risk for hepatitis A and hepatitis B. Check with your doctor to see if you should get hapatitis A and B vaccines.
Could I already have hepatitis C?
Ask your doctor for a blood test for hepatitis C.
Three of every four adults who get HAV have symptoms that usually develop over a period of several days. Children who are infected often have no symptoms.
If you have symptoms:
Unlike HBV and HCV, HAV causes no long-term liver damage, and usually does not cause death. There is no chronic carrier state with HAV. Having had the disease produces lifelong immunity from future HAV infection.
You may have hepatitis B (and be spreading the disease) and not know it; sometimes a person with HBV infection has no symptoms at all.
If you have symptoms:
Most people have no symptoms until the disease is very advanced. Fatigue is most common. Only 25%-30% develop malaise, weakness, or anorexia and some develop jaundice. Fulminant hepatitis with liver failure following acute HCV infection has been reported but is rare.
Why should I be tested for hepatitis C?
Early diagnosis is important so you can:
Always wash your hands after using the bathroom, changing a diaper, and before eating or preparing food.
Hepatitis A vaccines provide long-term protection against hepatitis A and are licensed for use in persons 2 years of age and older. Children and adults need two shots of hepatitis A vaccine for long-term protection.
Who should receive hepatitis A vaccine?
Hepatitis A is preventable. Get vaccinated!
Hepatitis B vaccine is the best protection against HBV. Three doses are needed for complete protection.
Who should get vaccinated?
All pregnant women should be tested for HBV early in their pregnancy. Children born to HBV positive mothers should receive vaccine along with hepatitis B immune globulin (called H-BIG) at birth. The vaccine series should be completed during the first 6 months of life.
There is no cure for HBV; this is why prevention is so important. Hepatitis B is preventable. Get vaccinated!
An ounce of prevention is worth a pound of cure!
There is no vaccine to prevent hepatitis C.
Minnesota Department of Health, Acute Disease Prevention and Control materials;
Hepatitis A and Hepatitis B brochure, August 1999.
Centers for Disease Control and Prevention materials, Hepatitis C brochure, October 1998.