List of drug resistance mutations (DRM) detected at baseline (BL) and virological failure (VF) by Sanger sequencing (SS) and UDS for patients failing a NNRTI-based regimen (n = 6) or NRTI-based regimen (n = 8).

*UDS failed for this sample. Only DRMs detected by SS were listed. #For technical reasons, E138 position was not read by UDS. Italic: mutations only detected by UDPS/Normal: mutations detected by both UDPS and SS. Bold: Major protease mutations. Underlined: mutations associated to prescribed treatment. GSS, Genotypic Sensitivity Score; ART, antiretroviral treatment; ZDV, zidovudine; DDI, didanosine; D4T, stavudine; 3TC, lamivudine; FTC: Emtricitabine; ABC, abacavir; TDF, tenofovir; EFV, efavirenz; NVP, nevirapine.