Neutralization profiles CM235.2 and ETH2220.11B Env-based viruses.

<p>Inhibition of infection using HIV-1+ sera and multiple viral forms (pseudovirus, biological isolate, original IMC and IMC.LucR) of CM235.2 (A) and ETH2220.11B (B) in the TZM-bl assay, using the cell-line encoded firefly luciferase reporter endpoint. Inhibition of infection using HIV-1+ sera and CM235.LucR (C) and ETH2220.LucR (D) in the TZM-bl and PBMC assay with three different donor PBMC as assay targets, using the IMC-encoded Renilla luciferase reporter endpoint. Values are the reciprocal sera dilution at which RLU was reduced by 50% compared to the level in virus control wells. Horizontal lines represent the threshold of detection (1:40 sera dilution); values at or under the line indicate 50% inhibition was not reached.