<prompt> Multibacillary is a spectrum of disease seen in -LeprosyTBTetanusTrachoma  <response>: Operational classification of Leprosy According to skin smear positivity to serve as a basis for chemotherapy Paucibacillary Leprosy PBL Multibacillary Leprosy MBL BI 2 BI 2 Included types Indeterminate Polar tuberculoid TT Border Tuberculoid BT Polar lepromatous LL Borderline lepromatous BL Mid-borderline BB Multidrug therapy MDT in NLEP Drugs Rifampicin 600mg OAMS Dapsone 100mg daily Rifampicin 600mg OAMS Dapsone 100mg daily Clofazimine 300mg OAMS 5 mg daily Treatment duration 6 months 12 months Follow up after treatment Annually for 2 years Annually for 5 years BI: bacteriological index OAMS: Once a month supervised Ref: Park 25th edition Pgno : 332-347 