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In this study HIV-1 subtype C-infected adults demonstrated higher purifying selection on their viral populations in reverse transcriptase (RT) than infected children. This difference is likely explained by more mature cytotoxic T-lymphocyte responses in adults, which may have implications for the development of drug resistance in the RT region.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4458742 | PMC |
http://dx.doi.org/10.1089/AID.2015.0023 | DOI Listing |
AIDS Res Hum Retroviruses
September 2025
Clinical Laboratory, The People's Hospital of Baoding, Baoding, China.
The emergence of CRF80_0107 resulted from recombination between co-circulating CRF01_AE and CRF07_BC genotypes. To date, no secondary recombinants involving CRF80_0107 as a parental strain have been documented in public sequence databases. Here, we report the identification and characterization of a novel HIV-1 CRF80_0107/B recombinant form isolated from a treatment-naïve men who have sex with men (MSM) individual in Baoding City, Hebei Province, China.
View Article and Find Full Text PDFHIV Med
September 2025
Department of Medical Microbiology, Faculty of Medicine, Hacettepe University, Ankara, Türkiye.
Introduction: Monitoring transmitted drug resistance is crucial for guiding first-line antiretroviral therapy (ART) and controlling the rising HIV epidemic in Türkiye. This study aimed to determine the prevalence of transmitted antiretroviral resistance to protease inhibitors (PIs), nucleoside reverse transcriptase inhibitors (NRTIs), non-nucleoside reverse transcriptase inhibitors (NNRTIs), integrase strand transfer inhibitors (INSTIs) and capsid assembly inhibitors (CAIs). We also assessed the distribution of HIV-1 subtypes and circulating recombinant forms (CRFs) at one of the main national referral centres in Türkiye.
View Article and Find Full Text PDFAnal Chim Acta
November 2025
HIV-1 Molecular Epidemiology Laboratory, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Microbiology Department, Hospital Universitario Ramón y Cajal, CIBER en Epidemiología y Salud Pública (CIBERESP), Madrid, 28034, Spain. Electronic address:
Background: Currently, 39.9 million people are infected with the human immunodeficiency virus (HIV), and 1.3 million new infections occur annually, with over 170 circulating variants.
View Article and Find Full Text PDFPLoS Pathog
September 2025
Department of Microbiology and Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, United States of America.
Antiretroviral therapy (ART) has dramatically improved the clinical prognosis for people with HIV and prevents HIV transmission. However, ART does not cure HIV infection because of a persistent, latent viral reservoir in long-lived cells such as central memory CD4+ T (TCM) cells. Eliminating or preventing reservoir formation will require a better understanding of HIV-1 latency establishment.
View Article and Find Full Text PDFAIDS Res Hum Retroviruses
September 2025
Clinical Laboratory, The People's Hospital of Baoding, Baoding, China.
The frequent recombination between subtypes has driven significant HIV-1 genetic diversity in recent years, especially in some areas with co-circulation of multiple subtypes. In this study, we obtained nearly full-length genome sequences of two novel HIV-1 B/CRF01_AE/CRF07_BC recombinants from BD076A and BDL161, with lengths of 8718 bp (HXB2:772-9490) and 8851 bp (HBB2:759-9610), respectively. Both recombination breakpoint and Bootscanning analysis revealed that the recombinant structure of BD076A was based on the CRF07_BC backbone, with the insertion of one subtype B and one CRF01_AE gene fragment, containing four subregions.
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