Low prevalence of HIV-1 integrase resistance among antiretroviral-naive patients newly diagnosed with HIV-1 from Belém, Pará, Amazon region of Brazil

Abstract

We described the HIV-1 subtypes and the frequency of resistance mutations in HIV-1 integrase region among antiretroviral-naive patients with HIV/AIDS from Belém, Pará, Amazon region of Brazil. The partial integrase gene sequence of 59 antiretroviral-naive HIV-1 infected patients was amplified and sequenced. Genotypic analyses revealed the absence of major resistance-associated mutations to integrase but minor polymorphic mutations were present in 44.1% of patients and M50I polymorphism was the more prevalent.