HIV genotypes and molecular transmission networks among MSM with newly reported HIV infections in Dehong Prefecture， Yunnan Province from 2010 to 2019

DUAN Xing; LIANG Xinyue; WANG Jibao; YANG Jin; WANG Yikui; YANG Yulong; ZHOU Sujuan; YANG Tao; YANG Yuecheng; TANG Renhai; YE Runhua; DING Yingying; HE Na; DUAN Song

doi:10.19428/j.cnki.sjpm.2023.23380

Shanghai yufang yixue (Dec 2023)

HIV genotypes and molecular transmission networks among MSM with newly reported HIV infections in Dehong Prefecture， Yunnan Province from 2010 to 2019

DUAN Xing,
LIANG Xinyue,
WANG Jibao,
YANG Jin,
WANG Yikui,
YANG Yulong,
ZHOU Sujuan,
YANG Tao,
YANG Yuecheng,
TANG Renhai,
YE Runhua,
DING Yingying,
HE Na,
DUAN Song

Affiliations

DUAN Xing: Department of AIDS and STD Prevention and Control， Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention， Mangshi， Yunnan 678400， China
LIANG Xinyue: School of Public Health， Fudan University， Ministry of Public Health and Safety Education Key， Shanghai 200032， China
WANG Jibao: Department of AIDS and STD Prevention and Control， Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention， Mangshi， Yunnan 678400， China
YANG Jin: Department of AIDS and STD Prevention and Control， Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention， Mangshi， Yunnan 678400， China
WANG Yikui: Department of AIDS and STD Prevention and Control， Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention， Mangshi， Yunnan 678400， China
YANG Yulong: School of Public Health， Fudan University， Ministry of Public Health and Safety Education Key， Shanghai 200032， China
ZHOU Sujuan: School of Public Health， Fudan University， Ministry of Public Health and Safety Education Key， Shanghai 200032， China
YANG Tao: Department of AIDS and STD Prevention and Control， Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention， Mangshi， Yunnan 678400， China
YANG Yuecheng: Department of AIDS and STD Prevention and Control， Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention， Mangshi， Yunnan 678400， China
TANG Renhai: Department of AIDS and STD Prevention and Control， Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention， Mangshi， Yunnan 678400， China
YE Runhua: Department of AIDS and STD Prevention and Control， Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention， Mangshi， Yunnan 678400， China
DING Yingying: School of Public Health， Fudan University， Ministry of Public Health and Safety Education Key， Shanghai 200032， China
HE Na: School of Public Health， Fudan University， Ministry of Public Health and Safety Education Key， Shanghai 200032， China
DUAN Song: Department of AIDS and STD Prevention and Control， Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention， Mangshi， Yunnan 678400， China

DOI: https://doi.org/10.19428/j.cnki.sjpm.2023.23380
Journal volume & issue: Vol. 35, no. 12
pp. 1168 – 1174

Abstract

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ObjectiveThis study aimed to investigate the HIV genotypic subtypes and molecular transmission clusters among men who have sex with men （MSM） with newly reported HIV infections in Dehong Dai and Jingpo Autonomous Prefecture （Dehong Prefecture）， Yunnan Province， China， between 2010 and 2019. The study aimed to identify potential high-risk transmitters and provide reference data for screening， management， and intervention of infection sources.MethodsPlasma samples from newly reported HIV-positive MSM individuals in Dehong Prefecture between 2010 and 2019 were collected. The viral pol gene fragments were amplified， sequenced， and genotyped. Genetic distances （GD） between pairwise sequences were analyzed and calculated. MEGA 7.0 and Gephi were used for phylogenetic and molecular transmission network analysis.ResultsA total of 159 newly reported HIV infections among MSM were included in the study， with successful genotyping of 100 cases. Nine HIV-1 subtypes were identified， with the most prevalent being CRF01_AE subtype （52%）， followed by CRF07_BC subtype （31%）， CRF55_01B subtype （10%）， and others （7%）. Cluster analysis revealed a total network access rate of 67%， forming three transmission clusters. CRF01_AE subtype formed two transmission clusters with 38 and 3 infected individuals， while CRF07_BC subtypes formed one transmission cluster with 26 infected individuals. The transmission network within the CRF01_AE clusters exhibited a more complex relationship. Significant differences in educational level were observed between the two main transmission clusters.ConclusionThe predominant HIV subtypes among newly reported MSM cases in Dehong Prefecture between 2010 and 2019 were CRF01_AE and CRF07_BC. Significant cultural differences are observed between the main transmission clusters. Continued monitoring of genotypic subtypes and targeted interventions within transmission clusters are warranted.

Published in Shanghai yufang yixue

ISSN: 1004-9231 (Print)
Publisher: Shanghai Preventive Medicine Association
Country of publisher: China
LCC subjects: Medicine
Website: http://www.sjpm.org.cn/indexen.htm

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