The importance of the determination of the actual etiological structure of viral hepatitis morbidity is shown. The necessity of introducing a more stringent control of the conditions of current disinfection with due regard to the level of the seasonal rise of hepatitis A morbidity and the time of its beginning is substantiated. The expediency of the multiple (more than 4 times) injection of immunoglobulin for the prophylaxis of hepatitis A is emphasized. Indications to immunoglobulin prophylaxis depending on morbidity rates in different areas and the conditions of the formation of foci with multiple recurrent cases of the disease are considered. Organizational, as well as sanitary and hygienic measures directed towards the decrease of hepatitis B incidence are outlined.