This study investigated the prevalence of antiretroviral drug resistance mutations among treatment-naive HIV-infected individuals in San Luis Potosí, Mexico, a region less influenced by migration compared to larger cities.
Thirty-eight viral sequences from 42 subjects were analyzed, revealing a 9.5% overall rate of drug resistance mutations, particularly concerning non-nucleoside reverse transcriptase inhibitors.
The findings emphasize the impact of internal migration on spreading HIV mutations and suggest that drug resistance may be imported, warranting further attention as migrant repatriation increases in Mexico.