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Major role of dolutegravir in the emergence of the S147G integrase resistance mutation.
J Antimicrob Chemother
December 2024
Department of Virology, Sorbonne Université, INSERM, UMR-S 1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié Salpêtrière - Charles Foix, 83 Boulevard de l'Hôpital 39, F-75013 Paris, France.
Background: The S147G mutation is associated with high-level resistance to the integrase strand transfer inhibitor (INSTI) elvitegravir. In several poorly documented cases, it was also selected in patients on dolutegravir. Given the widespread use of dolutegravir, further studies of S147G are required.
View Article and Find Full Text PDFConfirmation of Two Novel HIV-1 CRF01_AE/CRF07_BC Recombinant Forms Among Men Who Have Sex with Men in Hebei, China.
AIDS Res Hum Retroviruses
January 2025
Department of AIDS Research, Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang, China.
Acquired immune deficiency syndrome caused by human immunodeficiency virus (HIV) is a serious infectious disease because of its' high genetic variability. Nowadays, homosexual contact has become the most predominant transmission route in Hebei province, China, leading to the emergence of novel HIV-1 recombinant forms. The neighbor-joining (N-J) phylogenetic trees were constructed using MEGA 6.
View Article and Find Full Text PDFCharacterization of an Invisible HIV-1 Circulating Recombinant Form (CRF149_01B) in China.
AIDS Res Hum Retroviruses
January 2025
Yunnan Provincial Key Laboratory of Public Health and Biosafety & Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China.
In this study, by analyzing the available near full-length genome (NFLG) sequences of CRF55_01B, it was found that two of the NFLG sequences could not be clustered with other NFLG sequences. Recombination analysis and phylogenetic analysis suggested that these two NFLG sequences arose by recombination with subtype B based on CRF55_01B, rather than by recombination directly derived from CRF01_AE and subtype B. In addition, two other HIV-1 partial gene fragments found in the database shared the same characteristics as these two NFLG sequences in the key recombination region.
View Article and Find Full Text PDFGenetic Diversity and Antiretroviral Resistance in HIV-1-Infected Patients Newly Diagnosed in Cabo Verde.
Viruses
December 2024
Global Health and Tropical Medicine, GHTM, Associate Laboratory in Translation and Innovation Towards Global Health, LA-REAL, Instituto de Higiene e Medicina Tropical, IHMT, Universidade NOVA de Lisboa, Rua da Junqueira 100, 1349-008 Lisboa, Portugal.
The high genetic variability of HIV-1 and the emergence of transmitted drug resistance (TDR) can impact treatment efficacy. In this study, we investigated the prevalent HIV-1 genotypes and drug-resistance-associated mutations in drug-naïve HIV-1 individuals in Cabo Verde. The study, conducted between 2018 and 2019, included drug-naïve HIV-1 individuals from the São Vicente, Boa Vista, Fogo, and Santiago islands.
View Article and Find Full Text PDFTracing the Dispersal Pathway of HIV-1 Subtype C to Bahia: Phylogenetic Connections to Southern Brazil.
Viruses
December 2024
Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Rua Waldemar Falcão, 121, Candeal, Salvador 40296-710, Bahia, Brazil.
The HIV-1 epidemic in Brazil is predominantly characterized by subtype B, except in the southern states, where subtype C (HIV-1C) is more prevalent. Continuous monitoring of this profile is essential to maintain an accurate understanding of the molecular landscape of the HIV epidemic in Brazil. In this study, we isolated and sequenced seven new HIV-1C strains from the state of Bahia, located in the Northeast region of Brazil.
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