TABLE 1.

Comparison of inhibitory antibody concentrations in the intracellular p24-Ag assay and the Ag-capture assaya

VirusAntibodyConcn (μg/ml)
p24-Ag assayAg-capture assay
IC50IC80IC90IC50IC80IC90
BaLHIVIG95322678106355737
2F52327>500.912>50
2G1215>50>506.0>50>50
b120.51.63.20.31.02.2
SF162HIVIG3219756941185445
2F50.68.6381.11142
2G123.5>50>500.9>50>50
b120.21.23.10.10.41.2
  • a IC50, IC80, and IC90 are the concentration of antibody that produced 50, 80, and 90% virus neutralization, respectively. Values are averages of three independent experiments for each antibody against each virus.