病毒性乙型肝炎(以下简称乙肝)公认的传播途径是经血(注射)传播。自1967年国外学者Krugman用人体试验经口感染成功,对可能经口传播引起了关注;但当时所用的感染材料是血清而非粪(尿)。长期以来国内外多数学者对乙肝可能经粪(尿)一口传播持否定或怀疑态度。认为粪中不能检 Viral hepatitis B (hereinafter referred to as hepatitis B) is recognized as the route of transmission by menstrual (injection) transmission. Since 1967, Krugman, a foreign scholar, has succeeded in transdermal infection with a human test, it is of concern that oral transmission may occur; however, the infectious material used at that time was serum rather than feces. For a long time, most scholars both at home and abroad have been negative or suspicious about the possible transmission of hepatitis B through feces (urine). I think that can not secrete