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卡介苗接种足预防结核病的有效措施.但不同菌株接种后的效果也不同,虽然影响卡介苗效果的因素是多方面的.但卡介苗的质量和菌株的选择被认为是关键因素。为此.世界卫生组织和国际生物制品标准协会正在组织国际性的协作研究。我们庄长春生物制品研究所的指导卜,于1980年3月～1982年4月,在1,444名中小学生和幼儿中观察了日本172、丹麦1331、北京64-42三种液体皮内卡介苗的12周阳转率,并连续观察了二年阳转维持率,报告如下: 材料与方法三种卡介苗、结素均由长春生物制品所卡介苗室
Bacillus Calmette-Guérin (BCG) vaccination is an effective measure to prevent tuberculosis, but the effects of different strains after inoculation are different, although the factors that affect the effectiveness of BCG are many. However, the quality of BCG and the choice of strains are considered as the key factors. To this end, WHO and the International Association of Biological Products Standards are organizing international collaborative research. Our guidance at the Changchun Institute of Biological Products, from March 1980 to April 1982, observed the effects of three liquid intradermal BCG vaccinations in 1,444 primary and secondary school children and young children in Japan 172, Denmark 1331, and Beijing 64-42 Zhou Yang conversion rate, and continuous observation of the two years of positive rate of maintenance, the report is as follows: Materials and Methods Three BCG, nodules by the Changchun Institute of Biologicals BCG room