ArticleThe Journal of antimicrobial chemotherapy2024
HIV-1 transmitted drug resistance in newly diagnosed individuals in Italy over the period 2015-21.
Article in The Journal of antimicrobial chemotherapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Genetic diversity and evolutionary analysis of HIV-1 among migration populations: a five-year cross-sectional molecular epidemiology study.Virus genes · 2026Article
- The Epidemiology of HIV-1 Resistance to Two-Drug Regimens in Multicenter Cohort From Poland-A Cross-Sectional Study.Health science reports · 2026Article
- Development of a Next-Generation Sequencing Protocol for Assessing Lenacapavir Resistance in HIV-1 Capsid.Journal of medical virology · 2026Article
- Article
- Next-Generation Sequencing Analysis for HIV-1 Genotyping and Drug Resistance Mutations Mapping in Sicily, Italy.Viruses · 2025Article
- Development and Evaluation of an Optimised Sanger-Based Assay for HIV-1 Drug Resistance Genotyping in Chinese Circulating Strains Across Subtypes and Viral Loads.Infection and drug resistance · 2025Article
- Comparison of Different HIV-1 Resistance Interpretation Tools for Next-Generation Sequencing in Italy.Viruses · 2024Article
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Abstract
backgroundTransmitted drug resistance (TDR) is still a critical aspect for the management of individuals living with HIV-1. Thus, its evaluation is crucial to optimize HIV care.
methodsOverall, 2386 HIV-1 protease/reverse transcriptase and 1831 integrase sequences from drug-naïve individuals diagnosed in north and central Italy between 2015 and 2021 were analysed. TDR was evaluated over time. Phylogeny was generated by maximum likelihood. Factors associated with TDR were evaluated by logistic regression.
resultsIndividuals were mainly male (79.1%) and Italian (56.2%), with a median (IQR) age of 38 (30-48). Non-B infected individuals accounted for 44.6% (N = 1065) of the overall population and increased over time (2015-2021, from 42.1% to 51.0%, P = 0.002). TDR prevalence to any class was 8.0% (B subtype 9.5% versus non-B subtypes 6.1%, P = 0.002) and remained almost constant over time. Overall, 300 transmission clusters (TCs) involving 1155 (48.4%) individuals were identified, with a similar proportion in B and non-infected individuals (49.7% versus 46.8%, P = 0.148). A similar prevalence of TDR among individuals in TCs and those out of TCs was found (8.2% versus 7.8%, P = 0.707).By multivariable analysis, subtypes A, F, and CFR02_AG were negatively associated with TDR. No other factors, including being part of TCs, were significantly associated with TDR.
conclusionsBetween 2015 and 2021, TDR prevalence in Italy was 8% and remained almost stable over time. Resistant strains were found circulating regardless of being in TCs, but less likely in non-B subtypes. These results highlight the importance of a continuous surveillance of newly diagnosed individuals for evidence of TDR to inform clinical practice.
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