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本院于1958年内对南京市三个企业单位(机床厂、电瓷厂、有线电厂)的青年工人2931名做了结素试验,并为其中结素反应阴性的青年工人613各接种了卡介苗,本文以接种工作中的资料,就其自然感染率进行分析和讨论。结素试验的方法本试验是在工厂集体健康检查的基础上进行的,检查对象系年龄在25岁以下、过去未接种过卡介苗、胸部X线检查心肺正常而无其他严
In 1958, we conducted a pilot test of 2,931 young workers from three enterprises in Nanjing (machine tool factory, electric porcelain factory and cable plant), and vaccinated young workers 613, each of whom was negative for NDV, with BCG. In this paper, Inoculation of work in the data, the natural infection rate analysis and discussion. The method of knot test This test is carried out on the basis of the factory collective health examination, the test subject is under 25 years of age, BCG was not vaccinated in the past, chest X-ray examination of normal and non-cardiac