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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: J Clin Virol. 2017 Jun 29;94:15–21. doi: 10.1016/j.jcv.2017.06.006

Fig. 3.

Fig. 3

Proportion of RNA Positive/3rd Generation Rapid Negative Samples Detected as HIV Positive by Third and Fourth Generation EIA and Fourth Generation Rapid Tests. 57 pre-seroconversion plasma samples with HIV RNA > 20 copies/ml that tested HIV negative using third generation antibody (Ab)-only rapid diagnostic tests were evaluated with Bio-Rad GS HIV-1/2 + O EIA, Bio-Rad HIV Combo Antigen (Ag)/Ab EIA, Alere Determine™ HIV-1/2 Ag/Ab Combo, and Conformité Européene (CE)-Marked Alere™ HIV Combo. 8 of 57 (14%) were positive by Bio-Rad GS HIV-1/2 + O EIA and 27 of 47 (47%) were positive by Bio-Rad HIV Combo Ag/Ab EIA (p < 0.0001). 4 of 57 (7%) were positive by Alere Determine™ HIV-1/2 Ag/Ab Combo (2 Ab only, 2 Ag only, 0 dual Ag/Ab) and 16 of 57 (28%) were positive by CE-Marked Alere™ HIV Combo (1 Ab only, 9 Ag only, 6 dual Ag/Ab).