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皮上划痕接种卡介苗,方法简便,易为群众所接受,但结核菌素阳转率一般较低。为了探素提高其阳转率的途径,我们以延长划痕长度和改用钝针与目前应用的皮上划痕法进行了对比观察。进行方法与结果如下: 对象:为7～15岁结核菌素阴性反应(5个单位旧结核菌素稀释液皮内注射72小时后反应平均直径在5毫米以下者)的儿童2,254名。卡介苗接种:卡介苗为北京生物制品研究所制品,每毫升含菌量75毫克的新鲜卡介苗。接种部位如常规在左上臂三角肌下端外缘,痕型为“井”字。
Skin scratch BCG vaccination, the method is simple, easy to be accepted by the masses, but generally lower rates of tuberculin positive. In order to explore ways to improve the rate of positive conversion, we compared the length of the scratches with the blunt needle and the currently used scratch method. The methods and results were as follows: Subjects: 2,254 children with tuberculin-negative reactions of 7 to 15 years old (average response diameter of 5 millimeters or less after 5 hours of intranasal injection of old tuberculin solution). BCG vaccination: BCG products for the Beijing Institute of Biological Products, each milliliter of bacteria containing 75 mg of fresh BCG. Inoculation site, such as routine in the left upper extremity deltoid outer edge, marks the type of “well” word.