“…In these patients, primarily immune response-modifying agents were tested. Among them, a-interferon has been shown to be useful with a clinical, biochemical and sero logical remission in 30-40% of highly selected patients [6], Further immunological agents which are being stud ied in clinical trials are P-and y-interferon [7], corticoste roids, levamisole [8], thymosin [9], specific immunother apies (anti-HBs, bone marrow transplantation) [10,11], granulocyte-macrophage colony-stimulating factor [12] and interleukin-2 [13a, b]. Many observations lead to the conclusion that the HBV is not cytopathic to its host cell.…”