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Growth curve of HIV-1 replication after infection of MT-4 cells by viruses harvested from transfected Cos-7 cells. One million MT-4 cells were infected with either the pNL4-3-WT, pNL4-3-L74V, pNL4-3-M184V, or pNL4-3-L74V-M184V virus, using 2 ng of p24 antigen in each case. Virus production was monitored by RT assay of culture fluids.
