TABLE 1.

Comparison of the performance of HIV DUO, HIV Combi, HIV-1/HIV-2 3rd Generation Plus EIA, p24 Ag detection, and HIV-1 RNA RT-PCR in seroconversion panels

Seroconversion panel	Bleeding day with first positive result in:
	HIV DUO	HIV Combi	HIV-1/HIV-2 3rd Generation Plus EIA	p24 Ag	RT-PCRa	Western blotb
BBI H	28	26	28	Neg.c	NDe	28
BBI N	0	0	0	Neg.c	NDe	2
BBI W	47	47	47	47	NDe	84
BBI Y	44	44	44	44	44	Ind.d
BBI Z	7	9	27	7	2	27
BBI AC	111	111	111	111	111	120
BBI AD	18	18	25	18	14	Ind.d
BBI AE	3	7	7	3	0	Ind.d
BBI AF	28	28	28	28	15	33
BBI AG	27	27	27	27	27	34
BBI AK	12	12	19	12	5	Ind.d
BBI AI	0	0	7	0	0	11
NABI SV-0271-1	8	8	13	8	NDe	20
NABI SV-0331	13	15	20	13	6	Ind.d
NABI SV-0351	8	8	11	8	1	15
NABI SV-0361	9	9	16	9	1	16
J	0	0	14	0	NDe	14

^aData for HIV-1 RNA RT-PCR is from BBI and NABI. 

^bWestern blot results were interpreted according to CDC criteria. 

^cNeg., no p24 antigenemia detected. 

^dWestern blotting was indeterminate (Ind.) at the last bleeding. 

^eND, not determined.