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. 2011 Oct;85(20):10669–10681. doi: 10.1128/JVI.05249-11

Fig. 1.

Fig. 1.

Laboratory staging of acute HIV-1 infection in subject ZP6248. Plasma viral load (RNA copies/ml) was determined using the COBAS Amplicor HIV-1 monitor test (the threshold of the assay is 400 copies/ml). p24 antigen was detected using the Alliance HIV-1 p24 Antigen ELISA Kit (PerkinElmer, Boston, MA). HIV-1 specific antibodies were detected using the GS HIV-1/HIV-2 plus O EIA kit and the GS HIV-1 Western blot kit (Bio-Rad, Hercules, CA). The temporal appearance of HIV-1 specific markers according to the classification by Fiebig (21) is shown.