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甲型病毒性肝炎(以下简称甲肝)主要见于小儿。但是,仅凭其流行病学特点、临床表现和肝功能检测不能确诊。从病原学上与乙型病毒性肝炎(以下简称乙肝)以及其它型病毒性肝炎也很难相区别。即使HBsAg(乙型肝炎表面抗原)阴性的急性肝炎也不能就认为是甲肝,因为还有其它型肝炎的可能。即使HBsAg阳性的急性肝炎,也不能就认为是乙肝而排除甲肝的诊断。因为患者可能同时感染了甲、乙两型肝炎
A virus hepatitis (hereinafter referred to as hepatitis A) mainly seen in children. However, based solely on its epidemiological characteristics, clinical manifestations and liver function tests can not be diagnosed. From the etiology and hepatitis B (hereinafter referred to as hepatitis B) and other types of viral hepatitis is also very difficult to distinguish. Even acute hepatitis with negative HBsAg (hepatitis B surface antigen) can not be considered as hepatitis A because of the possibility of other types of hepatitis. Even if HBsAg-positive acute hepatitis, can not rule out the diagnosis of hepatitis A hepatitis B. Because the patient may be infected with both A and B hepatitis