Neutralizing antibody titers of plasmas tested with autologous and heterologous viral envelopes.

<p>Plasma samples are from chronically infected individuals not currently on treatment. Titers are expressed as 1/plasma dilution. Higher numbers indicate greater inhibition (titer). Green color indicates positive neutralization activity which is significantly greater than inhibition of the specificity control, aMLV. Dashed red line indicates autologous plasma/virus pair. na = not available.