If multiple drug-resistant TB (MDR-TB) is detected, treatment with at least four effective antibiotics for 18 to 24 months is recommended.
如果檢驗出細菌對多種藥物有抗藥性（英语：Multidrug-resistant TB）（MDR-TB），建議使用最少四種有效的抗生素進行18到24個月的療程。