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- W2016664919 abstract "Brazil is a large developing country where almost all FDA-licensed antiretrovirals are made available to more than 200,000 individuals under antiretroviral treatment. General primary HIV-1 resistance in Brazil is assumed to be low, but data are scarce, especially in the Northeast region. To evaluate the prevalence of primary HIV-1 antiretroviral resistance in the state of Ceará, Brazil, a cross-sectional prospective study of antiretroviral-naive HIV-1-infected individuals was performed between May 2008 and May 2009. Genomic sequences of reverse transcriptase and protease regions of the pol gene of HIV-1 using PCR products were obtained. Mutations related to resistance to NRTI, NNRTI, and PI were evaluated according to the WHO mutation list for primary resistance surveillance, which excludes common polymorphisms. Seventy-four individuals were evaluated (50% male) with a median age 30 years; 55.4% were men who have sex with men. Median CD4+ T lymphocyte counts were 418 and 960 cells/mm3 and the median viral loads were 4.41 and 4.46 log10 RNA copies/ml for individuals older and younger that 18 years, respectively. Twenty-seven percent of patients were symptomatic. Five patients (6.8%) were recently infected, as detected by the BED test. The mutations 41L, 67N, 215D, 219Q, 101E, and 103N in the RT and 32I, 46I, 54V, 82T, and 90M, in the PR were identified in 9.5% of samples, more frequently in HIV subtype B (85.1%). A significant level of primary HIV resistance was detected in urban Northeast Brazil, a region geographically distant from the more highly populated and wealthier areas of Southeast Brazil, and this emphasizes the need for monitoring resistance in the studied area." @default.
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- W2016664919 date "2011-02-01" @default.
- W2016664919 modified "2023-10-02" @default.
- W2016664919 title "Short Communication: Intermediate Prevalence of HIV Type 1 Primary Antiretroviral Resistance in Ceará State, Northeast Brazil" @default.
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- W2016664919 doi "https://doi.org/10.1089/aid.2010.0028" @default.
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