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卡介苗(BCG)系1908年由牛型结核分枝杆菌变异株减毒获得。虽然用于抗结核接种已有50多年,但是对它的预防肺结核的效果尚有争论。
Bacillus Calmette-Guerin (BCG) was attenuated in 1908 by variant strains of bovine M. tuberculosis. Although it has been used in anti-tuberculosis vaccination for more than 50 years, its effectiveness in the prevention of tuberculosis remains controversial.