Article
Potential overestimation of HIV-1 sub-subtype F1 circulation in Rio de Janeiro, Brazil
Registro en:
MARQUES, Bianca Cristina Leires; MORGADO, Mariza Gonçalves; GUIMARÂES, Monick Lindenmeyer. Potential overestimation of HIV-1 sub-subtype F1 circulation in Rio de Janeiro, Brazil. Mem Inst Oswaldo Cruz, v.113, n.8, e170483, 6p, 2018.
0074-0276
10.1590/0074-02760170483
1678-8060
Autor
Marques, Bianca Cristina Leires
Morgado, Mariza Gonçalves
Guimarães, Monick Lindenmeyer
Resumen
In Brazil, detection of the HIV-1 sub-subtype F1 has decreased with a simultaneous increase in detection of the recombinant FB and FC forms. In previous HIV-1 env molecular epidemiology studies in Rio de Janeiro, 11.4% of the detected sequences were of the F1 sub-subtype. With the goal of re-estimating the prevalence of the HIV-1 F1 sub-subtype, we performed extended analyses of these samples by examining five genomic regions, resulting in 3.3% being confirmed as F1. Moreover, genomic analysis of 11 of the 21 samples identified as F1 confirmed that nine were F1 and two were BF1. Considering the number of samples assayed, the prevalence of F1 was quite low, which supports the use of different genomic regions for the assessment of HIV-1 classification in countries where several subtypes and recombinant forms co-circulate.