The book in an accessible form describes the entire group of viral hepatitis (A, E, B, O, C, O and mixed hepatitis). Special attention is paid to the pathogenesis, morphological changes in the liver, clinical features, diagnosis, antiviral therapy of parenteral hepatitis. The basics of rehabilitation and medical examination, as well as preventive measures are presented. Designed for doctors of various specialties (therapists, pediatricians, infectious disease specialists), as well as senior students of medical institutes.