Hepatitis means inflammation of the liver. The liver is a vital organ that processes nutrients, filters the blood, and fights infections. When the liver is inflamed or damaged, its function can be affected. Heavy alcohol use, toxins, some medications, and certain medical conditions can cause hepatitis. However, hepatitis is often caused by a virus. In the United States, the most common types of viral hepatitis are hepatitis A, hepatitis B, and hepatitis C.
Hepatitis A can last from a few weeks to several months. Hepatitis B can range from a mild illness, lasting a few weeks, to a serious, life-long (chronic) condition. More than 90% of unimmunized infants who get infected develop a chronic infection, but 6%–10% of older children and adults who get infected develop chronic hepatitis B. Hepatitis C can range from a mild illness, lasting a few weeks, to a serious, life-long (chronic) infection. Most people who get infected with the hepatitis C virus develop chronic hepatitis C. Hepatitis A is spread when a person ingests fecal matter—even in microscopic amounts—from contact with objects, food, or drinks contaminated by feces or stool from an infected person. Hepatitis B is primarily spread when blood, semen, or certain other body fluids- even in microscopic amounts – from a person infected with the hepatitis B virus enters the body of someone who is not infected. The hepatitis B virus can also be transmitted from:
Hepatitis C is spread when blood from a person infected with the Hepatitis C virus – even in microscopic amounts – enters the body of someone who is not infected. The hepatitis C virus can also be transmitted from:
Children
People at increased risk for hepatitis A
People at increased risk for severe disease from hepatitis A infection
Other people recommended for vaccination
Any person who requests vaccination
There is no vaccine available for hepatitis C.
Supportive treatment for symptoms Acute: No medication available; best addressed through supportive care Chronic: Regular monitoring for signs of liver disease progression; some patients are treated with antiviral drugs Acute: There is not a recommended treatment for acute hepatitis C. People should be considered for treatment if their infection becomes chronic. Chronic: There are several medications available to treat chronic hepatitis C. Current treatments usually involve 8-12 weeks of oral therapy (pills) and cure over 90% of people with few side effects Testing for hepatitis A is not routinely recommended. CDC recommends hepatitis B testing for:
CDC recommends hepatitis C testing for:
Many people with hepatitis do not have symptoms and do not know they are infected. If symptoms occur with an acute infection, they can appear anytime from 2 weeks to 6 months after exposure. Symptoms of chronic viral hepatitis can take decades to develop. Symptoms of hepatitis can include: fever, fatigue, loss of appetite, nausea, vomiting, abdominal pain, dark urine, light-colored stools, joint pain, and jaundice. |