冶金行业粉尘、毒物作业人员结核菌素皮肤试验结果分析

Dermal Test of on the Tubercle Bacillus among Dust and Toxicant-exposed Working Staff in Metallurgy Industry

目的 通过对某冶金行业接触粉尘、毒物作业人员的结核感染情况的分析，调查粉尘、毒物作业人员的结核易感性。方法 将受试者分为粉尘和粉尘毒物联合组。受试者左前臂内侧注射0．1ml卡介苗纯蛋白衍化物，于注射后48～72h检查注射部位反应。测量硬结的横径和纵径，计算其平均直径，从而做出结果判定。结果 粉尘作业人员和粉尘、毒物联合作业人员的感染率（即阳性率）分别为75．48％和79，31％，均高于全国水平（44．50％），单纯粉尘作业人员与粉尘、毒物联合作业人员之间的感染率、强阳性率差异均无显著性。结论 粉尘、毒物作业人员为结核菌易感人群，且毒物因素并未使粉尘作业人员对结核的易感性提高。

[ Objective] To leam the susceptibility of tuberculosis among dust and toxicant - exposed working staff. [ Methods] The guinea pigs were divided into two groups, namely the dust group and the dust - toxicant group. They were injected with 0.1 ml BCG vaccine of purified protein derivative on their left ann; the reaction was observed 48 to 72 hours after the injection. [Results] The positive infection rate was 75.48% and 79.31% in the dust group and the dust - toxicant group respectively, both succeeded the national standard. No significant difference was found between the two groups in the infection rate. [ Conclusion ] Dust and toxicant - exposed workers are a susceptible group with high susceptibility of tuberculosis.