本文选用1979年江西省结核病流行病学调查中的121例资料较完整的涂阳病人,对这些病例的家庭密切接触者的感染及患病情况进行调查并进行简要分析。一、感染率 133名15岁以下未接种过卡介苗的接触者,结素阳性率46.6％,强阳性率10.5％,与同期我省同年龄组儿童结素阳性率9.7％和强阳性率1.5％比较,有显著差异。二、患病率 15岁以下儿童(受检人数为253名),患病率 In this paper, we selected 121 cases of smear positive smear positive cases from epidemiological survey of tuberculosis in Jiangxi Province in 1979, and investigated and analyzed the infection and prevalence of close family contacts in these cases. First, the infection rate of 133 under the age of 15 were not vaccinated BCG contact, nodular positive rate of 46.6%, strong positive rate of 10.5%, with the same period in our province children with nodular positive rate of 9.7% and strong positive rate of 1.5% Comparison, there are significant differences. Second, the prevalence of children under the age of 15 (the number of subjects was 253), the prevalence