FIG 2.

Infection with cell-associated or cell-free WITO ± DEAE-dextran with different antibodies. TZM-bl (A and B) or A3R5 (C and D) target cells were infected with cell-associated (A and C) or cell-free (B and D) WITO virus in the presence of different concentrations (20 to 0.00002 μg/ml) of antibodies, including anti-Flu (Ab82), A32, 4E10, 10E8, VRC01, CH01, PGT126, PG9, CH58, CH59, and the CD4-directed antibodies hu5A8 and huOKT4A. Background (negative control) was subtracted from results, and results were normalized to the no-antibody positive control and summarized as infection based on RLU (A and B) or percentage of GFP⁺ (Far Red⁻) cells (C and D), where 1 is equal to 100% infection. Results are expressed as dose-response curves illustrating the median at each log dose.