Viral hepatitis is a condition where the liver becomes inflamed because of a virus, according to the National Institute of Diabetes and Digestive and Kidney Diseases. Viral hepatitis can be caused by the A, B, C, D and E viruses. Some of the hepatitis viruses cause short-term viral hepatitis while others cause long term or permanent, chronic hepatitis.
Symptoms of viral hepatitis may include headaches, fatigue, diarrhea, nausea, and low grade fever, according to the National Institute of Diabetes and Digestive and Kidney Diseases.People with viral hepatitis may also experience symptoms such as abdominal pain, jaundice, loss of appetite and low fevers. Viral hepatitis is not always caused by the hepatitis viruses, but it sometimes caused by other viruses, such as the adenovirus or parvovirus viruses.