[New hepatitis viruses].

Until 1987 only the hepatitis viridae A, B and D were discovered. All other viral agencies of hepatitis were summarized under the term non-A-non-B virus. By modern methods of molecular biology and recombinant gene technology, several new hepatitis viridac could be identified and their structure partly characterized. The hepatitis virus E (HEV) is predominantly transferred through the fecal-oral path, the hepatitis viridae C and G predominantly parenteral. The structure and molecular biology of these new hepatitis viridae as well as the pathogenesis, epidemiology, diagnosis, clinical manifestation, prophylaxis and therapy of the various types of hepatitis are described and compared with the wellknown hepatitis viridae A and B.