[Viral hepatitis as a disease with occupational etiology]

This paper reviews the literature and discusses the occupational background and conditions of hepatitis. There are known three hepatitis viruses (HAV, HBV and HCV) with proved transmission through occupational contacts. In addition, occupation-related infections HDV and HGV, are probable or possible. Current diagnostic and epidemiological data as well as suggestions concerning the prevention of occupational hepatitis are also presented. A concept of work ability of health-care workers infected with HBV and HCV is discussed.