英语语法分析

The most common anti-TB medicines are isoniazid, rifampicin, pyrazinamide and ethambutol.

最常用的抗结核药品是异烟肼、利福平、吡嗪酰胺和乙胺丁醇。

In the early 1960s, Rifampicin and clofazimine, the other two components of MDT, were discovered.

在1960年代初发现了联合化疗的另外两个组成部分，即利福平和氯法齐明。

MDR-TB is caused by bacteria that are resistant to the most effective anti-TB drugs (isoniazid and rifampicin).

耐多药结核病是由对多数有效抗结核病药物（异烟肼和利福平）都具有耐药性的细菌引起的。