Sedaghat A
Pahlavi Med J. 1976 Oct;7(4):421-9.
Thirty-four patients with tuberculosis were skin tested with 5 tuberculin units (TU) of purified protein derivative of Mycobacterium tuberculosis (PPD). PPD supplied by Park Davis and Co., Detroit, Michigan, U.S.A. (PPD-PD) as well as PPD obtained from The Razi Institute, Hessarak, Teheran (PPD-RI) were both used for skin testing in each patient. The results indicate that 74-79% of patients with active tuberculosis have positive tuberculin reactions, that PPD-RI is a potent source of tuberculin for skin testing and that a substantial proportion of our tuberculous patients (21-26%) have negative tuberculin skin reactions.
34例结核病患者用5结核菌素单位（TU）的结核分枝杆菌纯蛋白衍生物（PPD）进行皮肤试验。由美国密歇根州底特律市帕克·戴维斯公司提供的PPD（PPD-PD）以及从德黑兰赫萨拉的拉齐研究所获得的PPD（PPD-RI）均用于每位患者的皮肤试验。结果表明，74%-79%的活动性结核病患者结核菌素反应呈阳性，PPD-RI是用于皮肤试验的结核菌素的有效来源，并且我们相当一部分结核病患者（21%-26%）结核菌素皮肤反应呈阴性。
