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为了解广州市中学生ＨＢｓＡｇ携带者情况及抗－ＨＢｓＡｇ水平，我们从１９９６年９月起对老城四个区的８８所中学的初、高中入学新生进行ＨＢｓＡｇ、抗－ＨＢｓ的检测。现将结果报告如下：１ 对象与方法１－１ 对象选择１９９６～１９９８年广州市老城四个区（东山区、越
To understand the situation of HBsAg carriers and the level of anti-HBsAg among middle school students in Guangzhou, we tested the HBsAg and anti-HBs of freshmen and middle-school students from 88 middle schools in four districts of the Old City from September 1996. The results are reported as follows: 1 objects and methods 1-1 object selection 1996 to 1998, four districts of Guangzhou Old City (Dongshan District, Vietnam