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自开展HAA(肝炎协同抗原、简称澳抗)检测以来,国内外对HAA携带者进行了大量的调查工作,但由于所处地理环境卫生状况的不同,检出的结果也各异,从国内报导的资料来看,因其检查方法和时间不同,城乡之间、不同年龄与各类人群中检出率也不一致,上海为4.3％;杭州为2.5％;郑州
Since the detection of HAA (hepatitis co-antigen), HAA carriers carried out a large number of investigations both at home and abroad. However, due to the difference of geographical environment and health, the results of detection were also different. Data, due to its inspection methods and different time, urban and rural areas, different ages and different groups of people in the detection rate is also inconsistent, 4.3% in Shanghai; Hangzhou 2.5%; Zhengzhou