Characteristics of WB Pos/TMA Neg Samples identified by ARC NAT Screening

All samples p24 Ag negative

Sample Pool Neat HIV-1/HIV-2 WB HIV PCR

1 NR 1.43 41, 120, 160 Neg

2 NR 1.03 41, 160 Neg

3 NR 1.62 41, 160 Neg

4 NR 1.11 41, 55, 160 Neg

5 NR 2.50 24, 41, 51, 61, 160 Neg

6 NR 20.18 all bands Neg

7 NR 1.22 24, 41, 160 Neg

8 NR 1.11 17, 41, 120, 160 Neg

9 NR 1.84 41, 160 Neg

10 NR 1.40 24, 41, 160 Neg

11 NR 1.70 17, 24, 41, 51, 160 Neg

12 NR 20.00 all bands Pos (200 copies/mL)

13 NR 17.84 all bands Neg

09/08/99 – 08/31/00