Neutralization of four viruses by 92 HIV-positive plasma samplesa

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  • a Pooled rhesus plasma from SIV-negative animals served as a negative control. The viruses are organized horizontally, and the plasma samples are organized from top to bottom. Dates refer to time that the sample was collected. 1/20 and 1/200 indicate 20- and 200-fold dilutions of plasma, respectively. Numbers indicate percent SEAP activity (counts per second ± the standard deviation). A white box indicates >50% SEAP activity, a yellow box indicates <50% SEAP activity but >10% SEAP activity, and a red box indicates <10% SEAP activity.