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1982年9～10月,我们对宁夏四所大专院校入校新生做了肺结核感染情况的调查。现将结果报告如下。调查对象及方法一、调查对象: 1982年由城乡考入我区四所大专院校的全体男女青年学生共1,173人。二、调查方法: 采用兰州生物制品研究所1∶2000稀释旧结素(批号82009),于左前臂掌侧下1/3处皮内注射0.1毫升(5TU)。注射后72小时观察反应。阴性者一律接种冻干皮内卡介苗。有反应者记录硬结平均直径,同时询问病史、结核接触史、卡介苗接种史,并检查
From September to October 1982, we conducted a survey on tuberculosis among new students from four tertiary institutions in Ningxia. The results reported below. Subjects and Methods 1. Surveyees: In 1982, a total of 1,173 young men and women were enrolled in four tertiary institutions in our district from urban and rural areas. Second, the survey method: Lanzhou Institute of Biological Products 1: 2000 dilution of old knot (lot number 82009), in the left forearm, the lower 1/3 of the intradermal injection of 0.1 ml (5TU). The reaction was observed 72 hours after injection. Negative persons were vaccinated freeze-dried intradermal BCG. Responders recorded average diameter of induration, at the same time asked history, history of TB exposure, BCG vaccination history, and check