Hepatotropic viruses seen by clinicians.

During last decades we have been witnessing substantial progress in hepatology, particularly in relation to viral hepatitis. Novel diagnostic tools allowed researchers to define new etiological agents, understand their epidemiology and pathogenesis as well as develop effective preventive measures. However, several important questions still remain to be answered and no satisfactory therapeutical agents for chronic hepatitis are available. Basic epidemiological, preventive and clinical aspects of viral hepatitis are being discussed in this paper.