This document discusses the five main types of viral hepatitis: A, B, C, D, and E. It covers the etymology and introduction of hepatitis, describing how it is an inflammation of the liver that can be caused by viral infections. Each hepatitis type is then summarized individually, addressing topics like discovery date, morphology, transmission route, incubation period, symptoms, diagnosis, prophylaxis, and treatment. The types of hepatitis viruses are taxonomically unrelated and cause acute or chronic liver disease around the world.