HIV-1 drug resistance in ARV-naïve subjects with primary HIV-1 infection.

ARV: antiretroviral; OLA: oligonucleotide ligation assay; PBMC: peripheral blood mononuclear cells.+ = subjects with ≥1 mutation or mixture.− = subjects without mutations or with indeterminate results.Numbers represent subjects in whom HIV-1 drug resistance was/was not detected in plasma and PBMC specimens that had been obtained a median of 29 (IQR 19–66) and 31 (IQR 19–66) days after HIV-1 infection, respectively; all specimens were collected within six months of infection. McNemar's exact tests compare only subjects with discordant results (indicated in bold).