Hepatitis is an inflammation of the liver and is often caused by a virus.
About hepatitis
The most common types of viral hepatitis are A, B, and C. An estimated 4.4 million Americans are living with chronic hepatitis; most do not know they are infected. Some types of hepatitis have no symptoms, so it is important to be tested according to your doctor's recommendations.
Hepatitis factsheets
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CDC resources
EXTERNAL RESOURCES
Hepatitis A is a vaccine-preventable liver infection caused by the hepatitis A virus (HAV)
Vaccine resources
Additional resources
Human immunodeficiency virus (HIV) is a virus that attacks the body's immune system. If it is not treated, it can
About STDs
Sexually transmitted diseases (STDs), also known as sexually transmitted infections or STIs, are very common. Millions of new infections occur