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Table 1 Sensitivity of AFB and multiplex-PCR as diagnostic tools in detecting paucibacillary as well as multibacillary leprosy cases among clinically diagnosed patients

From: Multiplex PCR technique could be an alternative approach for early detection of leprosy among close contacts - a pilot study from India

Type of disease Clinical Forms Cases confirmed by AFB In SSS
(Slit skin smear)
Cases confirmed by Multiplex-PCR Percent of positivity by AFB test Percent of positivity of M-PCR test
Paucibacillary cases (n = 234) TT (n = 140) 44 (BI < 2) 111 31.4% 79.2%
  BT (n = 94) 18 (BI < 2) 77 19.1% 81.9%
Total 234 52 188 22.2% 80.3%
Multibacillary cases (n = 205) BL (n = 53) 38 (BI > 2) 47 71.6% 88.6%
  LL (n = 152) 133 (BI > 2) 136 87.5% 89.4%
Total 205 171 183 83.4% 89.2%