<prompt> According to DOTS-PLUS guidelines 2013 treatment of multidrug resistance TB includes all except ?Total duration 24-27 monthsIntensive phase - 6 drugsContinutation phase - 2 drugsIntensive phase 6-9 months  <response>: Ans. is c i.e., Continutation phase-2 drgus Treatment of multidrug resistance MDR TB MDR-TB is defined as resistance to at least both INH and rifampicin. Previously it was classified as Category IV under DOTS DOTS-PLUS. The treatment is given in two phases, the intestive phase IP and the continuation phase CP. The total duration of treatment for regimen for MDR-TB is 24-27 months, depending on the IP duration. o Treatment regimen comprises :- Intensive phase 6-9 months : Six drugs : Kanamycin Km, levofloxacin Lvx, ethionamide Eto, pyrazinamide Z, ethambutol E, and cycloserine Cs. Continuation phase 18 months : Four drugs : Levofloxaxcin, ethionamide, ethambutol and cycloserine. Total duration of treatment is 24-27 months. Treatment of extensive drug resistance XDR TB XDR-TB is defined as resistance to any fluoroquinolone and at least one of the following three second-line drugs capreomycin, kanamycin, amikacin, in addition to multidrug resistance. The Regimen for XDR-TB would be of 24-30 months duration, with 6-12 months Intensive Phase IP and 18 months Continuation Phase CP. Regimen is :- Intensive phase 6-12 months : Seven drugs : Capreomycin, PAS, moxifloxacin, high dose INH, clofazimine, Linezolid, amoxyclay. Continuation phase 18 months : Six drugs : PAS, moxifloxacin, high dose INH, clofazimine, linezolid, amoxyclay. 