ArticleVirology journal2012
Temporal dynamics of HIV-1 circulating subtypes in distinct exposure categories in southern Brazil.
Article in Virology journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- South-to-Southeast Expansion of HIV-1 Subtype C in Brazil.Journal of medical virology · 2025Article
- HIV-1 molecular diversity in Brazil unveiled by 10 years of sampling by the national genotyping network.Scientific reports · 2021Article
- Characterization of HIV-1 genetic diversity and antiretroviral resistance in the state of Maranhão, Northeast Brazil.PloS one · 2020Article
- Estimating HIV-1 Genetic Diversity in Brazil Through Next-Generation Sequencing.Frontiers in microbiology · 2019Article
- Article
- Comprehensive Characterization of HIV-1 Molecular Epidemiology and Demographic History in the Brazilian Region Most Heavily Affected by AIDS.Journal of virology · 2016Article
- Short-Term Dynamic and Local Epidemiological Trends in the South American HIV-1B Epidemic.PloS one · 2016Article
- Article
- Contribution of Epidemiological Predictors in Unraveling the Phylogeographic History of HIV-1 Subtype C in Brazil.Journal of virology · 2015Article
- The Evolving Genotypic Profile of HIV-1 Mutations Related to Antiretroviral Treatment in the North Region of Brazil.BioMed research international · 2015Article
- Temporal trends in the Swedish HIV-1 epidemic: increase in non-B subtypes and recombinant forms over three decades.PloS one · 2014Article
- Article
- Detection of the B"-GWGR variant in the southernmost region of Brazil: unveiling the complexity of the human immunodeficiency virus-1 subtype B epidemic.Memorias do Instituto Oswaldo Cruz · 2013Article
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8 authors.
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Abstract
backgroundThe HIV-1 epidemic in Brazil is predominantly driven by subtype B. However, in Brazilian Southern region subtype C prevails and a relatively high AIDS incidence rate is observed. The aim of the present study was to assess the temporal dynamics of HIV-1 subtypes circulating in patients from distinct exposure categories in Southern Brazil. For this purpose 166 HIV-1 samples collected at the years of 1998 (group I) and 2005-2008 (group II) were analyzed.
resultsAnalysis of group I revealed statistically significant (p < 0.05) associations between MSM and subtype B as well as between IDU and subtype C; while no statistical significant association between HIV-1 subtypes and exposure category was verified for group II. An overall temporal increase in the prevalence of subtype C and BC recombinants was observed in both HET and MSM populations, accompanied by a proportional decrease in the prevalence of the pure subtype B.
conclusionsThe present study shows an association between HIV subtypes and exposure categories at the middle 1990s in Southern Brazil. Our findings suggest that MSM and IDU populations might have played a major role in the introduction and initial dissemination of subtypes B and C, respectively, in Southern Brazil. This study also suggests a trend towards homogenization of HIV-1 strains across distinct exposure categories as a consequence of an overall increase in the prevalence of subtype C and BC recombinants in both HET and MSM populations.
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