TABLE 3.

Results of nested PCR on DBS distributed by age at sample collection^a

Infant age (mo)	Nested PCR on PBMCs (no. of samples)	Nested PCR on DBS (no. of samples)
		+	−	Ind
≤4b	+ (4)	4	0	0
	− (62)	0	61	1
	Ind (5)	0	5	0
>4 to ≤12c	+ (2)	2	0	0
	− (31)	0	31	0
	Ind (11)	0	11	0
>12 to ≤26d	+ (4)	3	0	1
	− (23)	0	23	0
	Ind (7)	0	7	0

^a+, HIV-positive result; −, HIV-negative result; Ind, indeterminate result for HIV.

^bSensitivity, 100%; specificity, 98%.

^cSensitivity, 100%; specificity, 100%.

^dSensitivity, 75%; specificity, 100%.