Pharmacology XDR-TB is defined as:- A MDR-TB B MDR - TB + resistance to any of injectable 2nd line drugs C MDR - TB + resistance to any of fluoroquinolones D MDR - TB + resistance to any of fluoroquinolones + resistance to any of injectable 2nd line drugs 💡 Explanation XDR-TB is defined as:- ✓ Correct Answer: D. MDR - TB + resistance to any of fluoroquinolones + resistance to any of injectable 2nd line drugs