Hepatitis A—Derives from an infection with the hepatitis A virus (HAV). This type of hepatitis is most commonly transmitted by consuming food or water contaminated by feces from a person infected with hepatitis A.
Hepatitis B—Derives from an infection with the hepatitis B virus (HBV). This type is transmitted through puncture wounds or contact with infectious body fluids, such as blood, saliva, or semen. Injection drug use, having sex with an infected partner, or sharing razors with an infected person. It is a chronic type.
Hepatitis C—Derives from the hepatitis C virus (HCV). It is transmitted through direct contact with infected body fluids, typically through injection drug use and sexual contact. Also a chronic type.
Hepatitis D—A rare form of hepatitis that occurs in conjunction with hepatitis B infection.
Hepatitis E—A waterborne disease caused by the hepatitis E virus (HEV). It is mainly found in areas with poor sanitation and is typically caused by ingesting fecal matter.
Signs and symptoms of acute hepatitis appear quickly. They include:
- Flu-like symptoms
- Dark urine
- Pale stool
- Abdominal pain
- Loss of appetite
- Unexplained weight loss
- Yellow skin and eyes, which may be signs of jaundice
Since chronic hepatitis develops slowly, these signs and symptoms may be too subtle to notice.