tuberculin or PPD test 结核菌素试验
Methods: The investigation was performed to 3265 subjects by standardized tuberculin test with the purified protein derivative of tuberculin (PPD) produced by Beijing Xiangrui Bioengineering Company.
方法：采用结核菌素皮肤接种试验和问卷调查的方法，调查3 265名大学生结核感染情况。
Method:The tuberculin test is carried on with 2u PPD-T and 5u PPD-B injected into the skin of students in the middle school.
方法：通过结核菌素皮肤试验对河南省部分中学生的非结核分枝杆菌感染情况进行了观察。
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