CDC researchers have developed a patented set of RT-PCR and sequencing primers based on HIV-1 group M sequences. Evaluation of the primers using samples collected around the world demonstrated broad detection capacity for multiple HIV-1 group subtypes and predominant circulating recombinant forms. Commercially available HIV-1 drug resistance (HIVDR) genotyping assays are expensive and have limited ability to detect non-B subtypes. This optimized assay is broadly sensitive in genotyping HIV-1 group M viral strains and more sensitive than other assays in detecting mixed viral populations. This technology can be used in resource-limited settings where HIVDR surveillance is recommended to minimize the development and transmission of HIVDR.

• Utility for HIV-1 sub-typing detection, evaluation of anti-HIV therapeutic efficacy, and HIV drug resistance (HIVDR) surveillance and monitoring
• Rapid, accurate, and cost-effective technology easily adapted as a kit