ArticleVirology journal2024
Molecular transmission network analysis reveals the challenge of HIV-1 in ageing patients in China: elderly people play a crucial role in the transmission of subtypes and high pretreatment drug resistance in developed Eastern China, 2019-2023.
Article in Virology journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed.
- Genetic Subtypes, Pretreatment Drug Resistance, and Associated Factors Among Individuals Newly Diagnosed With HIV-1 in Zhejiang Province From 2022 to 2024: Cross-Sectional Study.JMIR public health and surveillance · 2026Article
- [Impact of HIV-1 genotypes and population mobility on HIV-1 transmission in Guangzhou: a molecular transmission network analysis].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2026Article
- Network Dynamics and Evolutionary Drivers of HIV Drug Resistance in Eastern China, from 2022 to 2024.Viruses · 2025Article
- Molecular Transmission Network and Pretreatment Drug Resistance of Newly Diagnosed HIV-1 Infections in Taizhou, a Coastal City in Eastern China, from 2021-2023.Pathogens (Basel, Switzerland) · 2025Article
- Associated Factors of Cognitive Frailty in People Living with HIV Aged 50 and Older: A Cross-Sectional Study.Infectious diseases and therapy · 2025Article
- Analysis of risk factors of social frailty in older adults living with HIV/AIDS.Scientific reports · 2025Article
- Molecular network analysis for detecting HIV transmission clusters: insights and implications.Frontiers in public health · 2025Article
- Gonorrhoea among China's aging population: a 20-year nationwide analysis of epidemiological trends with 5-year projections.Frontiers in public health · 2025Article
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Abstract
backgroundThe number and proportion of HIV/AIDS patients among older people are continuously and rapidly increasing in China. We conducted a detailed molecular epidemiological analysis of HIV-1 epidemic strains in a developed city in eastern China and found that elderly people play a crucial role in the transmission of subtypes and high pretreatment drug resistance (PDR).
methodsA total of 1048 samples were obtained from 1129 (92.8%) newly confirmed HIV-1-positive and treatment-naive patients between 2019 and 2023. The 1316 bp target fragment of the pol gene was amplified by reverse transcription polymerase chain reaction (RT‒PCR) and nested PCR, and Maximum-likelihood (ML) phylogenetic trees and molecular transmission network were constructed to analyse the subtypes and transmission clusters. Molecular transmission network was visualized using Cytoscape with the distance threshold of 0.0075. PDR-associated mutations were determined according to the Stanford University HIV Drug Resistance Database.
resultsA total of 933 pol sequences (89.0%, 933/1048) were successfully obtained, and twelve HIV-1 subtypes were detected. CRF07_BC was the predominant subtype, accounting for 48.1% (449/933) of sequences, followed by CRF01_AE (29.4%, 274/933). A total of 398 individuals (42.7%, 398/933) formed 89 clusters in the network. Multivariable logistic regression analysis revealed that age, nationality, subtype, and PDR were the most significant factors associated with clustering in the transmission network. The prevalence of PDR was 14.6% (136/933).PDR associated with non-nucleoside reverse transcriptase inhibitors (10.0%, 93/933) was much more common than that associated with nucleoside reverse transcriptase inhibitors (1.8%, 17/933) and protease inhibitors (3.2%, 30/933) (χ
conclusionsOur study revealed the important influence of elderly people on CRF07_BC transmission and the high prevalence of PDR. The clustering of drug-resistant cases was significant, which suggested the potential for localized widespread transmission of drug-resistant strains. HIV screening and the determination of PDR are recommended for older patients to improve early detection and reduce treatment failure and second-generation transmission.
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