Bio-Rad Laboratories, Marnes La Coquette, France and Bio-Rad Laboratories, Steenvoorde, France
Diagnostics
France
Specimens repeatedly reactive in the Genscreen™ HIV-1 Ag Assay must be tested to confirm the presence of HIV-1 p24 antigen. Neutralization of the viral antigen by anti-HIV antibody is an accepted method of confirmation (1-4). The presence of p24 antigen in the sample is indicated by a loss of HIV1 antigen reactivity compared to a non-neutralized sample from the same specimen.