Medicine XDR-TB is defined as: March 2012 A Resistance to at least INH and rifampicin +/- other drugs B Resistance to any of the 3 first line drugs C Resistance to all 1st line drugs and any 3 second line injectable drugs D Resistance to at least INH and rifampicin + any quinolones + at least 1 injectable 2nd line drug 💡 Explanation XDR-TB is defined as: March 2012 ✓ Correct Answer: D. Resistance to at least INH and rifampicin + any quinolones + at least 1 injectable 2nd line drug