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
Answer is D. TYPE RESISTANCE TO Mono drug resistance Any one of H, Z and E Poly drug resistance Any two or all 3 of H, Z and E Rifampicin resistance R with or without other drugs except H Multi drug resistance (MDR) H and R Extensive drug resistance (XDR) H and R + any of FQ + any of injections