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HB可经多种途径传播。食品行业和公共场所从业人员如为传染源，其对社会人群的健康势必形成严重的威胁。为了及时发现这些人群中的传染源，并对其加以严格管理，我们从1990年至1995年，对锡林浩特市从事食品行业和公共场所的工作人员，进行了HBV表面抗原（HBsAg）的检查。1调查
HB can be spread in many ways. People in the food industry and public places, if they are sources of infection, are bound to pose a serious threat to the health of the social population. In order to promptly identify the sources of infection in these populations and strictly manage them, we conducted inspections of HBsAg in the food industry and public places in Xilinhot from 1990 to 1995. 1 survey