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各型病毒性肝炎的预防,由于病原体、流行病学特点和有效预防手段等不同而有差别。甲型肝炎其传染源是早期病人,目前尚未发现慢性病毒携带者。传播途径是粪-口传播,病人的大便自潜伏期末到发病2～3周有传染性,但以发病前4天至发病后6天传染性最强。免疫血清球蛋白(ISG)被动免疫预防效果良好。本病预防的重点应强调早期发现和隔离病人(30天),与患者接触须进行医学观察40天,搞好粪便无害化,保护水源,饮水消毒
Prevention of various types of viral hepatitis varies depending on the pathogen, epidemiological characteristics and effective means of prevention. Hepatitis A infection source is the early patients, has not yet found a chronic virus carriers. The route of transmission is fecal - oral transmission, the patient’s stool from the end of the incubation period of 2 to 3 weeks of onset of infectious, but to the onset of 4 days to 6 days after the onset of the most contagious. Immune serum globulin (ISG) passive immunization prevention effect is good. The focus of prevention of this disease should emphasize the early detection and isolation of patients (30 days), contact with patients to be medical observation for 40 days, do a sound decontamination, water protection, drinking water disinfection