Skip to main content

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%