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Abstract
Chronic viral hepatitis may now be controlled and, in many cases, permanently eradicated. Rapid advances in the antiviral therapy of chronic hepatitis C infection have resulted in a greater than 50% sustained response rate, with genotypes 2 and 3 now considered ‘curable diseases.’ Current hepatitis B therapy leads to significant improvement in liver histology and overall survival. These advances, coupled with the fact that 8% of the world population is chronically infected with viral hepatitis, has sparked considerable interest in this condition on the part of the pharmaceutical industry. In 2001, the most effective therapy for chronic hepatitis C is the combination of pegylated interferon alpha and oral ribavirin. The treatment of hepatitis B consists of either interferon alpha or oral lamivudine, while newer nucleoside/nucleotide analogues, alone or in combination with existing therapy, are being explored.