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一、美国病毒性肝炎的概况和预防Greenman 美国的病毒性肝炎的类型和中国相同也分为甲型、乙型及非甲非乙型三种,美国每年的报告病例约10万例,年发病率约为1‰。(一) 甲型肝炎:通常呈散在性发病,有时亦可通过食物及水造成爆发流行,暴发型肝炎发生率约为总病例数的1‰。病愈后无病毒携带现象,一般不转为慢性。
First, the United States overview and prevention of viral hepatitis Greenman United States of the same type of viral hepatitis and China is also divided into A, B and non-B type three, the United States reported about 100,000 cases a year, annual incidence Rate of about 1 ‰. (A) Hepatitis A: Hemorrhagic fever usually presents as a casual disease and can sometimes cause outbreaks through food and water. The incidence of fulminant hepatitis is about 1 ‰ of the total number of cases. After the illness without virus carrying phenomenon, generally do not turn to chronic.