. 2010 Dec 21;4(12):e921. doi: 10.1371/journal.pntd.0000921

Table 2. Evolution of the bacilloscopy index from 66 leprosy patients presented reactivation during or after treatment.

1^st biopsy^*	2^nd biopsy	3^rd biopsy	4^th biopsy	≠ patients (≠ with relapse)^**
Negative BI	neg	-	-	2
	neg	neg	-	1
	1	neg	-	2
	2	-	-	1 (1)
	2	neg	-	1
	2	2	neg	1 (1)
	4	1	-	1 (1)
Subtotal				9
BI 1+	neg	-	-	6
	1	-	-	2
	1	neg	-	1
	4	-	-	1 (1)
	4	3	-	1 (1)
	5	-	-	2 (2)
Subtotal				13
BI 2+	neg	-	-	4
	neg	neg	-	1
	neg	neg	neg	1
	1	-	-	2
	2	2	-	1
Subtotal				9
BI 3+	neg	-	-	4
	neg	neg	-	1
	neg	1	1	1
	1	-	-	1
	1	neg	-	1
	2	2	neg	1
Subtotal				9
BI 4+	neg	3	-	1
	1	-	-	1
	1	1	-	3
	1	1	neg	1
	2	1	-	1
	3	-	-	2
	3	1	-	1
	4	-	-	1 (1)
	4	1	-	1
Subtotal				12
BI 5+	neg	-	-	1
	2	-	-	1
	2	neg	-	2
	2	1	-	1
	3	-	-	1
	4	-	-	2
	4	1	-	1
	4	1	neg	1
Subtotal				10
BI 6+	4	-	-	2
	4	4		1 (1)
	5	-		1
Subtotal				4
Total				66

*Patients were grouped according to the pattern of first biopsy and in parenthesis are the 9 relapse cases.

**In parentheses are the 9 cases with relapse. Positive BI: bacilloscopy index in+(1 to 6); neg: biopsy with absence of bacilli; -: biopsy not done.