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Yang H, Chen M, Hu Y, Xu M, Li Y, Liu L, Yuan D, Yuan F, Li L, Ye L, Zhou C, Zhang Y, Liang S, Su L. An Assessment of Trends in HIV-1 Prevalence and Incidence and Spatio-Temporal Analyses of HIV-1 Recent Infection Among MSM During the Surveillance Period Between 2018 and 2022 in Sichuan, China. HIV AIDS (Auckl) 2024; 16:83-93. [PMID: 38464995 PMCID: PMC10924877 DOI: 10.2147/hiv.s448096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/24/2024] [Indexed: 03/12/2024] Open
Abstract
Background Men who have sex with men (MSM) is one main type of high-risk activities facilitating HIV-1 transmission in Sichuan province. Previous works on HIV-1 incidence and prevalence among MSM only concentrated before 2018, the situation after that is unknown. In addition, the distribution of hot-spots related to current HIV-1 epidemic is also rarely known among MSM in Sichuan. Objective To update trends of HIV-1 prevalence and incidence and to visualize hot-spots of ongoing transmission in Sichuan province during surveillance period among MSM between 2018 and 2022. Methods Limiting Antigen Avidity assay was performed to detect recent infection within new HIV-1 diagnoses founded during surveillance period among MSM. The HIV-1 prevalence and incidence were calculated according to an extrapolation method proposed by publications and guidelines. Trend tests were performed using χ2 tests with linear-by-linear association. The spatial analysis was conducted with ArcGIS 10.7 to figure hot-spots of HIV-1 recent infections among MSM. Results Between 2018 and 2022, 16,697 individuals participated in HIV-1 MSM sentinel surveillance program, of which 449 samples (98.25%) were tested with LAg-Avidity EIA, and 230 samples were classified as recent infection. Respectively, the overall prevalence and incidence were 2.74% and 3.69% (95% CI: 3.21, 4.16) and both had significant declining trends (p < 0.001). Luzhou city had a highest HIV-1 incidence (10.74%, 95% CI: 8.39, 13.10) over the study period and was recognized as a hot-spot for recent HIV-1 infection among MSM. Conclusion During the surveillance period, both HIV-1 prevalence and incidence were declining. However, Luzhou city had an unusually high HIV-1 incidence and became an emerging hot-spot of recent HIV-1 infection among MSM. This finding suggested focused attention, cross-regional intervention strategies, and prevention programs are urgently required to curb the spread of ongoing transmission.
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Affiliation(s)
- Hong Yang
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Maogang Chen
- Department of Microbiology, Liangshan Yi Autonomous Prefecture Center for Disease Control and Prevention, Xichang, People’s Republic of China
| | - Ying Hu
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Mengjiao Xu
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Yiping Li
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Lunhao Liu
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Dan Yuan
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Fengshun Yuan
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Ling Li
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Li Ye
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Chang Zhou
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Yan Zhang
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Shu Liang
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Ling Su
- Department of AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
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Yang H, Li Y, Xu M, Hu Y, Yuan F, Liu L, Li L, Yuan D, Ye L, Zhou C, Zhang Y, Su L, Liang S. The Update of HIV-1 Prevalence and Incidence and Spatio-Temporal Analyses of HIV Recent Infection Among Four Sub-Groups in Sichuan, China During Surveillance Period Between 2016 and 2022. Infect Drug Resist 2023; 16:6535-6548. [PMID: 37814665 PMCID: PMC10560476 DOI: 10.2147/idr.s428744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/27/2023] [Indexed: 10/11/2023] Open
Abstract
Background Sichuan Province has gradually become a hot-spot for HIV/AIDS. Little is known about the HIV-1 incidence and prevalence among four sub-groups since 2015. Meanwhile, the distributions of hot-spot areas related to recent infection cases that indicate current transmission among the four subgroups are also rare. Objective The main purpose of this study was to assess the HIV-1 prevalence and incidence and to visualize the distributions of hot-spot areas of current transmission among four subgroups (people who inject drugs, male STD clinic attendees, female sex workers and men who had sex with men) during the surveillance period in Sichuan province between 2016 and 2022. Results Of the 267,617 individuals, 2158 HIV-positive samples were tested with Lag-Avidity EIA, among which 493 samples were identified as recent infections. Among people who inject drugs (PWID), both HIV-1 prevalence (from 1.41% to 0.34%) and incidence (from 0.03% to 0.140%) showed a significant decreasing trend. Among men who had sex with men (MSM), female sex workers (FSWs), and male STD clinic attendees, HIV-1 prevalence indicated significant decreasing trends, whereas HIV-1 incidence showed no significant changes. Spatial analysis demonstrated the formation of hot-spots and clusters of current transmissions sharing regional differences, mainly concentrated in the southeast, and most of these were consecutive hot-spots. Conclusion The prevention and control were efficacious and persistent. However, among the other three subgroups, there is a need for a regional cooperative in prevention and control approaches and collaborative research in many aspects.
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Affiliation(s)
- Hong Yang
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Yiping Li
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Mengjiao Xu
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Ying Hu
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Fengshun Yuan
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Lunhao Liu
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Ling Li
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Dan Yuan
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Li Ye
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Chang Zhou
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Yan Zhang
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Ling Su
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Shu Liang
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
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Yang H, Li Y, He F, Yuan F, Liu L, Li L, Yuan D, Ye L, Zhou C, Zhang Y, Su L, Liang S. Demographic Characteristics and Hot-Spot Areas of Recent Infections Among New HIV Diagnoses in Sichuan, China, Between 2018 and 2020. Infect Drug Resist 2023; 16:779-789. [PMID: 36779044 PMCID: PMC9911905 DOI: 10.2147/idr.s394828] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/18/2023] [Indexed: 02/06/2023] Open
Abstract
Background Sichuan Province is severely affected by the HIV epidemic in China. Little is known about the characteristics of recent infections among new HIV diagnoses, which is critical to prevention strategies, evaluation of the HIV epidemic and health resource allocation. Meanwhile, individuals at primary stages of infection are related to the hot-spot areas of ongoing transmission in new HIV diagnoses, which is also rarely known. Objective This article aimed to report the proportion of recent infections among new HIV diagnoses, and to reveal demographic characteristics associated with HIV recent infections, and finally, to indicate the hot-spot areas of ongoing transmission in Sichuan province between 2018 and 2020. Methods Limiting Antigen (LAg)-Avidity assay was performed to detect recent infection within new HIV diagnoses reported in odd months between 2018 and 2020. Results were reclassified according to the data on CD4 cell count, antiretroviral treatment and the existence of an AIDS-defining illness. Logistic regression was used to determine characteristics associated with HIV recent infections. The spatial analysis was conducted with ArcGIS 10.7 to figure hot-spot areas of HIV recent infections. Results 42,089 newly diagnosed HIV-1 cases were tested using the LAg-Avidity EIA. In total, 5848 (13.89%) of those were classified as HIV recent infections. Female, age between 18-25 years and men who had sex with men were related to higher proportion of HIV recent infections. Logistic regression revealed that MSM aged between 18-25 years were more likely to be classified as recent infection. Spatial analysis demonstrated significant clustering in Chengdu, Yibin, Luzhou city between 2018 and 2020. Hot spots were mainly clustered in the center of Sichuan in 2018, but gradually spread to southwest and northwest between 2019 and 2020. Conclusion Enhanced preventive measures among relevant risk groups and areas where the potential HIV-1 transmission is ongoing is urgently needed to curb further spread.
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Affiliation(s)
- Hong Yang
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Yiping Li
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Fang He
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Fengshun Yuan
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Lunhao Liu
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Ling Li
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Dan Yuan
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Li Ye
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Chang Zhou
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Yan Zhang
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Ling Su
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
| | - Shu Liang
- Center for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China,Correspondence: Shu Liang; Ling Su, Email ;
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Zhu Q, JiKe C, Xu C, Liang S, Yu G, Wang J, Xiao L, Liu P, Chen M, Guan P, Liu Z, Jin C. A New Strategy to Quantitatively Identify Hot-Spot Areas in Growth of New HIV Infections for Targeted Interventions. Front Public Health 2021; 9:680867. [PMID: 34322472 PMCID: PMC8310914 DOI: 10.3389/fpubh.2021.680867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/14/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Previous geographic studies of HIV infection have usually used prevalence data, which cannot indicate the hot-spot areas of current transmission. To develop quantitative analytic measures for accurately identifying hot-spot areas in growth of new HIV infection, we investigated the geographic distribution features of recent HIV infection and long-term HIV infection using data from a whole-population physical examination in four key counties in Liangshan prefecture, which are most severely affected by HIV in China. Methods: Through a whole-population physical examination during November 2017- June 2018 in the four key counties, a total of 5,555 HIV cases were diagnosed and 246 cases were classified as recently infected by laboratory HIV recency tests. The geospatial patterns of recent and long-term HIV infected cases were compared using ordinary least squares regression and Geodetector. Further, geospatial-heterogeneity was quantified and indicated using a residual map to visualize hot-spot areas where new infection is increasing. Results: The geographic location of HIV cases showed an uneven distribution along major roads and clustered at road intersections. The geographic mapping showed that several areas were clustered with more recently infected HIV cases than long-term infected cases. The quantitative analyses showed that the geospatial asymmetry between recent and long-term HIV infection was 0.30 and 0.31 in ordinary least squares regression and Geodetector analysis, respectively. The quantitative analyses found twenty-three townships showing an increase in the number of recent infections. Conclusions: Quantitative analysis of geospatial-heterogeneous areas by comparing between recent and long-term HIV infections allows accurate identification of hot-spot areas where new infections are expanding, which can be used as a potent methodological tool to guide targeted interventions and curb the spread of the epidemic.
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Affiliation(s)
- Qiyu Zhu
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
| | - Chunnong JiKe
- Liangshan Prefecture Center for Disease Control and Prevention, Xichang, China
| | - Chengdong Xu
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
| | - Shu Liang
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu, China
| | - Gang Yu
- Liangshan Prefecture Center for Disease Control and Prevention, Xichang, China
| | - Ju Wang
- Liangshan Prefecture Center for Disease Control and Prevention, Xichang, China
| | - Lin Xiao
- Liangshan Prefecture Center for Disease Control and Prevention, Xichang, China
| | - Ping Liu
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Meibin Chen
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Peng Guan
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
| | - Zhongfu Liu
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Cong Jin
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
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Wilson A, Wang YY, Chen R, Cen P, Wang Y, Yao X, Wang T, Li S, Yan H. A thematic analysis of experiences of HIV risks among female sex workers in the Yunnan-Vietnam Chinese border region. BMC WOMENS HEALTH 2021; 21:7. [PMID: 33407384 PMCID: PMC7789185 DOI: 10.1186/s12905-020-01143-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 12/07/2020] [Indexed: 12/29/2022]
Abstract
Background The Yunnan province is located near the “Golden Triangle” border region between China, Myanmar and Thailand, which has the highest HIV/AIDS prevalence in China. Female sex workers (FSWs) in the Yunnan province are highly vulnerable to HIV infection. The objective of this study was to examine the experiences of FSWs in the Yunnan to better understand the risk of infection and the potential for transmission of HIV. Methods Semi-structured interviews were conducted between May 2018 and June 2018 with 20 FSWs recruited in Hekou County, Yunnan Province, China. Thematic analysis was conducted to identify themes that highlighted increased exposure of FSWs to the risk of HIV infection and transmission. Results The findings showed that FSWs’ primary source for HIV information was gynecologists, with few visiting the local HIV charity Red Ribbon. FSWs reported infrequent visits for check-ups with some seeing a gynecologist once a year. FSWs felt that the onus was on them to prevent STI/HIV infection by using a condom during sex, regardless of their ability to negotiate use. FSWs were also reluctant to see a gynecologists for treatment. Instead, they resorted to douching as a way of preventing HIV/STIs and treating vaginal health problems, such as leucorrhea. Most FSWs worked without the influence of alcohol and drugs. A small number of FSWs reported heroin addiction and injecting drug use. Conclusion The findings suggest a need for innovative HIV prevention strategies among FSWs and their clients in the Chinese border region. Governmental agencies should continue to implement practical strategies in terms of HIV prevention education and condom use through tailored interventions that are localized. Such strategies should include localized tailored interventions that dispel myths about douching as a method of HIV/STI prevention and incorporate a mobile outreach approach, similar to the ‘roadside restaurant’ outreach that has been successful in rural China.
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Affiliation(s)
- Amanda Wilson
- Division of Psychology, Faculty of Health and Life Sciences, De Montfort University, Leicester, UK
| | - Yuan Yuan Wang
- Division of Psychology, Faculty of Health and Life Sciences, De Montfort University, Leicester, UK
| | - Runsen Chen
- Department of Psychiatry, University of Oxford, Oxford, UK
| | - Ping Cen
- Center for Disease Control and Prevention of Nanning, Nanning, China
| | - Yuehui Wang
- School of Health Sciences, Wuhan University, Wuhan, China.,Center for Disease Control and Prevention of Yuzhong District of Chongqing, Chongqing, China
| | - Xing Yao
- Center for Disease Control and Prevention of Wuhan, Wuhan, China
| | - Tang Wang
- School of Health Sciences, Wuhan University, Wuhan, China
| | - Shiyue Li
- School of Health Sciences, Wuhan University, Wuhan, China
| | - Hong Yan
- School of Health Sciences, Wuhan University, Wuhan, China.
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6
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HIV/AIDS Among Female Sex Workers in China: Epidemiology and Recent Prevention Strategies. Curr HIV/AIDS Rep 2020; 17:151-160. [PMID: 32030600 DOI: 10.1007/s11904-019-00477-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
PURPOSE OF REVIEW This review aims to describe the epidemiology of HIV among female sex workers (FSWs) in China over the past decade, to summarize current gaps in knowledge regarding risk factors, and to identify new directions for HIV prevention strategies. RECENT FINDINGS We summarized national and regional levels of HIV prevalence among FSWs based on reported rates in the literature from 2008 to 2018. Studies identified cases of HIV infection among FSWs in all but one province during this time period, and demonstrated a sporadic pattern in most provinces, with a low overall national HIV prevalence below 1%. However, in Yunnan and Guanxi Zhuang Autonomous Regions, the median-reported prevalence rates were close to or slightly above 1%. National prevention programs have widely promoted male condoms as a primary and practical measure for HIV prevention, but studies evaluating condom use practices among FSWs demonstrated wide variability. A rise in illicit use of synthetic drugs and changing sexual practices in the setting of sex work (e.g., anal sex) may represent newer risk factors for HIV transmission among FSWs; however, more data are needed to better characterize these trends. Limited studies have examined the feasibility and efficacy of innovative prevention tools (e.g., female condoms) or strategies (e.g., pre-exposure prophylaxis, PrEP) to prevent HIV among FSWs. We call for a more comprehensive understanding of current trends in HIV risk among FSWs, as well as more research focuses on innovative strategies to reduce the spread of HIV in this vulnerable population.
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Zhu Q, Wang Y, Liu J, Duan X, Chen M, Yang J, Yang T, Yang S, Guan P, Jiang Y, Duan S, Wang J, Jin C. Identifying major drivers of incident HIV infection using recent infection testing algorithms (RITAs) to precisely inform targeted prevention. Int J Infect Dis 2020; 101:131-137. [PMID: 32987184 DOI: 10.1016/j.ijid.2020.09.1421] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/09/2020] [Accepted: 09/11/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Recent infection testing algorithms (RITAs) incorporating clinical information with the HIV recency assay have been proven to accurately classify recent infection. However, little evidence exists on whether RITAs would help in precisely identifying major drivers of the ongoing HIV epidemic. METHODS HIV recency test results and clinical information were collected from 1152 newly diagnosed HIV cases between 2015 and 2017 in Dehong prefecture of Yunnan province, and the efficacy of four different RITAs in identifying risk factors for new HIV infection was compared. RESULTS RITA 1 uses the recency test only. RITA 2 and RITA 3 combine the recency test with CD4+ T cell count and viral load (VL), respectively. RITA 4 combines both CD4+ T cell count and VL. All RITAs identified the MSM group and young people between 15 and 24 years as risk factors for incident HIV infection. RITA 3 and RITA 4 further identified the Dai ethnic minority as a risk factor, which had not been identified before when only the HIV recency test was used. CONCLUSIONS By comparing different RITAs, we determined that greater accuracy in classifying recent HIV infection could help elucidate major drivers impacting the ongoing epidemic and thus inform targeted interventions.
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Affiliation(s)
- Qiyu Zhu
- National AIDS Reference Laboratory, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Department of Epidemiology, School of Public Health, China Medical University, Shenyang, 110122, China
| | - Yikui Wang
- Department of AIDS Control and Prevention, Dehong Prefecture Center for Disease Control and Prevention, Mangshi 678400, Yunnan, China
| | - Jing Liu
- National AIDS Reference Laboratory, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Xing Duan
- Department of AIDS Control and Prevention, Dehong Prefecture Center for Disease Control and Prevention, Mangshi 678400, Yunnan, China
| | - Meibin Chen
- National AIDS Reference Laboratory, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Jin Yang
- Department of AIDS Control and Prevention, Dehong Prefecture Center for Disease Control and Prevention, Mangshi 678400, Yunnan, China
| | - Tao Yang
- Department of AIDS Control and Prevention, Dehong Prefecture Center for Disease Control and Prevention, Mangshi 678400, Yunnan, China
| | - Shijiang Yang
- Department of AIDS Control and Prevention, Dehong Prefecture Center for Disease Control and Prevention, Mangshi 678400, Yunnan, China
| | - Peng Guan
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, 110122, China
| | - Yan Jiang
- National AIDS Reference Laboratory, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Song Duan
- Department of AIDS Control and Prevention, Dehong Prefecture Center for Disease Control and Prevention, Mangshi 678400, Yunnan, China
| | - Jibao Wang
- Department of AIDS Control and Prevention, Dehong Prefecture Center for Disease Control and Prevention, Mangshi 678400, Yunnan, China.
| | - Cong Jin
- National AIDS Reference Laboratory, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
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Jiang L, Li Z, Huang J, Liu B, Yang Y, Lin L, Wang C, Xie X, Peng X, Xu W, Li H. Spatiotemporal clusters of HIV/AIDS infections caused by drug use and heterosexual contact in Ruili city, China 1989-2016. BMC Infect Dis 2019; 19:925. [PMID: 31666015 PMCID: PMC6822478 DOI: 10.1186/s12879-019-4568-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 10/16/2019] [Indexed: 11/28/2022] Open
Abstract
Background Ruili is a border city in southwest China along the heroin trafficking route. In recent decades, the city has witnessed increased in HIV transmission. The current study aims to explore the spatiotemporal trends in HIV prevalence identify and map the spatial variation and clustering of factors associated with HIV transmission through drug use and heterosexual contact transmissions at the village level from 1989 through 2016. Methods Geographic information system-based spatiotemporal analyses, including global and local spatial autocorrelation analyses and space-time scanning statistics, were applied to detect the location and extent of HIV/AIDS high-risk areas. Results Drug use and heterosexual contact were identified as the major transmission routes causing infection in Ruili. Results of global spatial analysis showed significant clustering throughout the city caused by transmission via drug use in the early phase of the epidemic and transmission via heterosexual contact in the late phase of the epidemic during the study period. Hotspots of transmission from drug use were randomly distributed throughout the city. However, the hotspots of transmission by heterosexual contact were located in the central area only around the Jiegao China-Myanmar land port. Space-time scanning showed that transmission from drug use clustered in the southwest area between 1989 and 1990, while transmission by heterosexual contact clustered in the central area between 2004 and 2014. Conclusions Heterosexual contact has become the dominant mode of transmission. Interventions should focus on highly clustered area where is around the Jiegao land port.
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Affiliation(s)
- Li Jiang
- The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, People's Republic of China
| | - Zhoulin Li
- Ruili City Center for Disease Control and Prevention, Ruili, Yunnan, People's Republic of China
| | - Jin Huang
- University of Kunming Medical Science, Kunming, Yunnan, People's Republic of China
| | - Bang Liu
- Ruili City Center for Disease Control and Prevention, Ruili, Yunnan, People's Republic of China
| | - Yingbo Yang
- Ruili City Center for Disease Control and Prevention, Ruili, Yunnan, People's Republic of China
| | - Lanzhu Lin
- Ruili City Center for Disease Control and Prevention, Ruili, Yunnan, People's Republic of China
| | - Chengbo Wang
- Ruili City Center for Disease Control and Prevention, Ruili, Yunnan, People's Republic of China
| | - Ximei Xie
- Ruili City Center for Disease Control and Prevention, Ruili, Yunnan, People's Republic of China
| | - Xia Peng
- Yunnan Provincial Center for Disease Control and Prevention, 158 Dongsi street, Kunming, Yunnan, 650022, People's Republic of China
| | - Wen Xu
- Yunnan Provincial Center for Disease Control and Prevention, 158 Dongsi street, Kunming, Yunnan, 650022, People's Republic of China
| | - Hong Li
- Yunnan Provincial Center for Disease Control and Prevention, 158 Dongsi street, Kunming, Yunnan, 650022, People's Republic of China.
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9
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Chen JO, Qiu YB, Rueda ZV, Hou JL, Lu KY, Chen LP, Su WW, Huang L, Zhao F, Li T, Xu L. Role of community-based active case finding in screening tuberculosis in Yunnan province of China. Infect Dis Poverty 2019; 8:92. [PMID: 31661031 PMCID: PMC6819334 DOI: 10.1186/s40249-019-0602-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 10/09/2019] [Indexed: 02/02/2023] Open
Abstract
Background The barriers to access diagnosis and receive treatment, in addition to insufficient case identification and reporting, lead to tuberculosis (TB) spreads in communities, especially among hard-to-reach populations. This study evaluated a community-based active case finding (ACF) strategy for the detection of tuberculosis cases among high-risk groups and general population in China between 2013 and 2015. Methods This retrospective cohort study conducted an ACF in ten communities of Dongchuan County, located in northeast Yunnan Province between 2013 and 2015; and compared to 136 communities that had passive case finding (PCF). The algorithm for ACF was: 1) screen for TB symptoms among community enrolled residents by home visits, 2) those with positive symptoms along with defined high-risk groups underwent chest X-ray (CXR), followed by sputum microscopy confirmation. TB incidence proportion and the number needed to screen (NNS) to detect one case were calculated to evaluate the ACF strategy compared to PCF, chi-square test was applied to compare the incidence proportion of TB cases’ demography and the characteristics for detected cases under different strategies. Thereafter, the incidence rate ratio (IRR) and multiple Fisher’s exact test were applied to compare the incidence proportion between general population and high-risk groups. Patient and diagnostic delays for ACF and PCF were compared by Wilcoxon rank sum test. Results A total of 97 521 enrolled residents were visited with the ACF cumulatively, 12.3% were defined as high-risk groups or had TB symptoms. Sixty-six new TB patients were detected by ACF. There was no significant difference between the cumulative TB incidence proportion for ACF (67.7/100000 population) and the prevalence for PCF (62.6/100000 population) during 2013 to 2015, though the incidence proportion in ACF communities decreased after three rounds active screening, concurrent with the remained stable prevalence in PCF communities. The cumulative NNS were 34, 39 and 29 in HIV/AIDS infected individuals, people with positive TB symptoms and history of previous TB, respectively, compared to 1478 in the general population. The median patient delay under ACF was 1 day (Interquartile range, IQR: 0–27) compared to PCF with 30 days (IQR: 14–61). Conclusions This study confirmed that massive ACF was not effective in general population in a moderate TB prevalence setting. The priority should be the definition and targeting of high-risk groups in the community before the screening process is launched. The shorter time interval of ACF between TB symptoms onset and linkage to healthcare service may decrease the risk of TB community transmission. Furthermore, integrated ACF strategy in the National Project of Basic Public Health Service may have long term public health impact.
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Affiliation(s)
- Jin-Ou Chen
- Division of tuberculosis control and prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Yu-Bing Qiu
- Division of tuberculosis control and prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | | | - Jing-Long Hou
- Division of tuberculosis control and prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Kun-Yun Lu
- Division of tuberculosis control and prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Liu-Ping Chen
- Division of tuberculosis control and prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Wei-Wei Su
- Division of tuberculosis control and prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Li Huang
- Division of tuberculosis control and prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Fei Zhao
- Clinical trail and research center of Beijing hospital, Beijing, China
| | - Tao Li
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Lin Xu
- Division of tuberculosis control and prevention, Yunnan Center for Disease Control and Prevention, Kunming, China.
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10
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Li Y, He C, He Z, Zhong M, Liu D, Liu R, Fan R, Duan Y. AIDS prevention and control in the Yunnan region by T cell subset assessment. PLoS One 2019; 14:e0214800. [PMID: 30998710 PMCID: PMC6472762 DOI: 10.1371/journal.pone.0214800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 03/20/2019] [Indexed: 11/18/2022] Open
Abstract
Background Prior to being spread throughout broader China, multiple human immunodeficiency virus (HIV)-1 genotypes were originally discovered in the Yunnan Province. As the HIV-1 epidemic continues its spread in Yunnan, knowledge of the influence of gender, age, and ethnicity to instances of HIV reservoirs will benefit monitoring the spread of HIV. Methods The degree to which T cells are depleted during an HIV infection depends on the levels of immune activation. T-cell subsets were assessed in newly-diagnosed HIV/AIDS patients in Yunnan, and the influence of age, gender, and ethnicity were investigated. Patients that were newly diagnosed with the HIV-infection between the years 2015 and 2018 at the First Affiliated Hospital of Kunming Medical College were selected for this study (N = 408). The lymphocyte levels and T cell subsets were retrospectively measured in whole blood samples by FACS analysis. Results The median CD4 count was 224 ± 191 cells/μl. Significantly higher mean frequencies and absolute numbers were observed in CD3+, CD3+CD4+, CD3+CD8+, CD45+, and CD3+CD4+/CD45+ in females compared to males. Han patients showed a higher total number of CD3+T cells and the ratio of CD3+ /CD45+ cells compared to any other ethnic minority (P < 0.001). The numbers of CD3+ T-cells, CD3+CD8+ T cells, and CD45+ T cells were highest in the age group ≥ 60. Significant differences were observed in the counts of CD3+, CD3+CD8+, and CD45+ cells and the ratio of CD3+/CD45+ and CD3+CD4+/CD45+ cells between the ≤ 29 and 30–59 age groups. Conclusion This study has revealed that low levels of CD4+ T cells can be observed in newly-diagnosed HIV/AIDS patients in the Yunnan province. It has also been demonstrated that gender, age, and ethnicity have a significant association with the ratio of T-cell subsets that may contribute to virus progression and disease prognosis in individuals belonging to certain subsets of the population. This study has highlighted the importance of HIV/AIDS screening in at-risk populations to ensure timely and adequate clinical management in Yunnan.
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Affiliation(s)
- Ya Li
- Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunan, China
- Yunnan Institute of Laboratory Diagnosis, Kunming, Yunan, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Chenglu He
- Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunan, China
- Yunnan Institute of Laboratory Diagnosis, Kunming, Yunan, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Zengpin He
- Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunan, China
- Yunnan Institute of Laboratory Diagnosis, Kunming, Yunan, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Min Zhong
- Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunan, China
- Yunnan Institute of Laboratory Diagnosis, Kunming, Yunan, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Dajin Liu
- Department of Medical Records and Statistics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Ruiyang Liu
- Department of Standardized Training, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Ruixuan Fan
- Department of Infectious Diseases, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
| | - Yong Duan
- Yunnan Key Laboratory of Laboratory Medicine, Kunming, Yunan, China
- Yunnan Institute of Laboratory Diagnosis, Kunming, Yunan, China
- Department of Clinical Laboratory, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunan, China
- * E-mail:
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11
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Chen Q, Sun Y, Sun W, Hao M, Li G, Su X, Xin R, Lu H. Trends of HIV incidence and prevalence among men who have sex with men in Beijing, China: Nine consecutive cross-sectional surveys, 2008-2016. PLoS One 2018; 13:e0201953. [PMID: 30092072 PMCID: PMC6084969 DOI: 10.1371/journal.pone.0201953] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 07/13/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Sexual transmission of HIV among men who have sex with men (MSM) increased markedly in China during the past decade. HIV incidence is a critical indicator in HIV surveillance and we use a HIV-1 BED-capture-enzyme immunoassay (BED-CEIA) to examine the incidence among MSM in Beijing from 2008 to 2016. Risk factors related to recent HIV infection were also assessed. METHODS Consecutive cross-sectional surveys on MSM were conducted yearly from 2008 through 2016. Demographic and behaviors data were collected. HIV status was determined and HIV positive specimens were tested for recent infection using BED-CEIA. Specimens with ODn values≤0.8 were considered recently infected, HIV incidence rates and prevalence were then calculated. Risk factors associated with recent HIV infection were assessed by univariate and multivariable logistic regression. RESULTS From 2008 to 2016, the numbers of eligible participants in the nine consecutive years ranged from 472 to 616. All the 261 eligible HIV-positive specimens were subjected to recent HIV infection testing. HIV prevalence ranged from 5.0% (3.3%-6.8%) to 10.2% (7.8%-12.7%), and incidence ranged from 1.57% (0.19%-2.95%) to 6.63% (3.65%-9.61%). MSM who never or sometimes used condoms during anal sex with men in the past 6 months (aOR = 1.515, 95%CI: 1.016-2.257, p = 0.041), or having syphilis infection (aOR = 1.561, 95%CI: 0.946-2.575, p = 0.081) were more likely to be recently infected with HIV. Being a Beijing resident (aOR = 0.409, 95%CI: 0.212-0.790, p = 0.008), or having only one male anal sex partner in the past 6 months (aOR = 0.467, 95%CI: 0.220-0.994, p = 0.048) were associated with a lower risk for recent HIV infection. CONCLUSIONS The HIV incidence fluctuated among MSM in Beijing. Unprotected anal sex, having multiple sex partners, being a non-registered Beijing resident and having a syphilis infection play important roles in the recent HIV infection. Effective intervention measures for HIV and syphilis control and prevention should be continuously strengthened.
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Affiliation(s)
- Qiang Chen
- Institute for AIDS/STD Control and Prevention, Beijing Center for Disease Control and Prevention, Beijing Center for Preventive Medical Research, Beijing, China
| | - Yanming Sun
- Institute for AIDS/STD Control and Prevention, Beijing Center for Disease Control and Prevention, Beijing Center for Preventive Medical Research, Beijing, China
| | - Weidong Sun
- Institute for AIDS/STD Control and Prevention, Beijing Center for Disease Control and Prevention, Beijing Center for Preventive Medical Research, Beijing, China
| | - Mingqiang Hao
- Institute for AIDS/STD Control and Prevention, Beijing Center for Disease Control and Prevention, Beijing Center for Preventive Medical Research, Beijing, China
| | - Guiying Li
- Institute for AIDS/STD Control and Prevention, Beijing Center for Disease Control and Prevention, Beijing Center for Preventive Medical Research, Beijing, China
| | - Xueli Su
- Institute for AIDS/STD Control and Prevention, Beijing Center for Disease Control and Prevention, Beijing Center for Preventive Medical Research, Beijing, China
| | - Ruolei Xin
- Institute for AIDS/STD Control and Prevention, Beijing Center for Disease Control and Prevention, Beijing Center for Preventive Medical Research, Beijing, China
| | - Hongyan Lu
- Institute for AIDS/STD Control and Prevention, Beijing Center for Disease Control and Prevention, Beijing Center for Preventive Medical Research, Beijing, China
- * E-mail:
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12
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Chen M, Jia MH, Ma YL, Luo HB, Chen HC, Yang CJ, Dai J, Yang L, Dong LJ, Lu R, Song LJ, Han Y, Lu JY, Cheung AKL, Chen ZW, Lu L. The changing HIV-1 genetic characteristics and transmitted drug resistance among recently infected population in Yunnan, China. Epidemiol Infect 2018; 146:775-781. [PMID: 29534773 PMCID: PMC9134363 DOI: 10.1017/s0950268818000389] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 12/30/2017] [Accepted: 02/07/2018] [Indexed: 11/05/2022] Open
Abstract
Multiple human immunodeficiency virus (HIV)-1 genotypes in China were first discovered in Yunnan Province before disseminating throughout the country. As the HIV-1 epidemic continues to expand in Yunnan, genetic characteristics and transmitted drug resistance (TDR) should be further investigated among the recently infected population. Among 2828 HIV-positive samples newly reported in the first quarter of 2014, 347 were identified as recent infections with BED-captured enzyme immunoassay (CEIA). Of them, 291 were successfully genotyped and identified as circulating recombinant form (CRF)08_BC (47.4%), unique recombinant forms (URFs) (18.2%), CRF01_AE (15.8%), CRF07_BC (14.4%), subtype C (2.7%), CRF55_01B (0.7%), subtype B (0.3%) and CRF64_BC (0.3%). CRF08_BC and CRF01_AE were the predominant genotypes among heterosexual and homosexual infections, respectively. CRF08_BC, URFs, CRF01_AE and CRF07_BC expanded with higher prevalence in central and eastern Yunnan. The recent common ancestor of CRF01_AE, CRF07_BC and CRF08_BC dated back to 1983.1, 1992.1 and 1989.5, respectively. The effective population sizes (EPS) for CRF01_AE and CRF07_BC increased exponentially during 1991-1999 and 1994-1999, respectively. The EPS for CRF08_BC underwent two exponential growth phases in 1994-1998 and 2001-2002. Lastly, TDR-associated mutations were identified in 1.8% of individuals. These findings not only enhance our understanding of HIV-1 evolution in Yunnan but also have implications for vaccine design and patient management strategies.
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Affiliation(s)
- M. Chen
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
- AIDS Institute and Department of Microbiology, Research Center for Infection and Immunity, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - M. H. Jia
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - Y. L. Ma
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - H. B. Luo
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - H. C. Chen
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - C. J. Yang
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - J. Dai
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - L. Yang
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - L. J. Dong
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - R. Lu
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - L. J. Song
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - Y. Han
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - J. Y. Lu
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
| | - A. K. L. Cheung
- AIDS Institute and Department of Microbiology, Research Center for Infection and Immunity, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Z. W. Chen
- AIDS Institute and Department of Microbiology, Research Center for Infection and Immunity, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - L. Lu
- Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, Yunnan, China
- College of Public Health, Kunming Medical University, Kunming, Yunnan, China
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13
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Sypsa V, Psichogiou M, Paraskevis D, Nikolopoulos G, Tsiara C, Paraskeva D, Micha K, Malliori M, Pharris A, Wiessing L, Donoghoe M, Friedman S, Jarlais DD, Daikos G, Hatzakis A. Rapid Decline in HIV Incidence Among Persons Who Inject Drugs During a Fast-Track Combination Prevention Program After an HIV Outbreak in Athens. J Infect Dis 2017; 215:1496-1505. [PMID: 28407106 PMCID: PMC5853582 DOI: 10.1093/infdis/jix100] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 02/15/2017] [Indexed: 01/14/2023] Open
Abstract
Background A "seek-test-treat" intervention (ARISTOTLE) was implemented in response to an outbreak of human immunodeficiency virus (HIV) infection among persons who inject drugs (PWID) in Athens. We assess trends in HIV incidence, prevalence, risk behaviors and access to prevention/treatment. Methods Methods included behavioral data collection, provision of injection equipment, HIV testing, linkage to opioid substitution treatment (OST) programs and HIV care during 5 rounds of respondent-driven sampling (2012-2013). HIV incidence was estimated from observed seroconversions. Results Estimated coverage of the target population was 88% (71%-100%; 7113 questionnaires/blood samples from 3320 PWID). The prevalence of HIV infection was 16.5%. The incidence per 100 person-years decreased from 7.8 (95% confidence interval, 4.6-13.1) (2012) to 1.7 (0.55-5.31) (2013; P for trend = .001). Risk factors for seroconversion were frequency of injection, homelessness, and history of imprisonment. Injection at least once daily declined from 45.2% to 18.8% (P < .001) and from 36.8% to 26.0% (P = .007) for sharing syringes, and the proportion of undiagnosed HIV infection declined from 84.3% to 15.0% (P < .001). Current OST increased from 12.2% to 27.7% (P < .001), and 48.4% of unlinked seropositive participants were linked to HIV care through 2013. Repeat participants reported higher rates of adequate syringe coverage, linkage to HIV care and OST. Conclusions Multiple evidence-based interventions delivered through rapid recruitment in a large proportion of the population of PWID are likely to have helped mitigate this HIV outbreak.
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Affiliation(s)
- Vana Sypsa
- Department of Hygiene, Epidemiology and Medical Statistics
| | - Mina Psichogiou
- First Department of Medicine, Athens University Medical School, Laiko Hospital
| | | | | | | | | | | | - Meni Malliori
- Department of Psychiatry, Medical School, National and Kapodistrian University of Athens
| | - Anastasia Pharris
- European Centre for Disease Prevention and Control, Stockholm, Sweden
| | - Lucas Wiessing
- European Monitoring Centre for Drugs and Drug Addiction, Lisbon, Portugal
| | - Martin Donoghoe
- World Health Organization Regional Office for Europe, Copenhagen, Denmark
| | | | | | - Georgios Daikos
- First Department of Medicine, Athens University Medical School, Laiko Hospital
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14
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Zhang X, Jia M, Chen M, Luo H, Chen H, Luo W, Zhang W, Ma Y, Yang C, Yang Y, Zhang X, Dai J, Dong L, Wong WC, Zhao P, Lu L. Prevalence and the associated risk factors of HIV, STIs and HBV among men who have sex with men in Kunming, China. Int J STD AIDS 2017; 28:1115-1123. [PMID: 28120646 DOI: 10.1177/0956462416688818] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To investigate the prevalence and the associated risk factors of human immunodeficiency virus (HIV), hepatitis B virus (HBV) and sexually transmitted infections (STIs) among men who have sex with men (MSM) in Kunming, 300 MSM were recruited through community-based organizations between September 2014 and January 2015. The prevalence of HIV, HBsAg, syphilis, Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) were 17.0%, 7.7%, 11.3%, 18.2% and 13.2%, respectively. In the three different anatomic sites (urethra, rectum and pharynx), the prevalence of rectal CT was the highest (15.5%), whereas NG was most commonly found in the pharynx (8.1%). Low education level, homosexuality, inconsistent condom use and drug use in the previous six months were significantly associated with HIV infection, whereas the former three factors were also associated with HBV infection.Older people (aged ≥ 40 years) and those who lacked knowledge of STIs, and younger people (aged <30 years) as well as inconsistent condom users were more at risk of syphilis and CT infections, respectively. NG infection was only associated with reported dating venues. Our study revealed a heavy disease burden and multiple risk factors of HIV/STIs among MSM in Kunming. It is necessary to promote regular screening and proactive treatment of HIV/STIs among MSM.
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Affiliation(s)
- Xiujie Zhang
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Manhong Jia
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Min Chen
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Hongbing Luo
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Huichao Chen
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Wei Luo
- 2 Department of AIDS/STD Control and Prevention, Kunming Center for Disease Control and Prevention, Kunming, China
| | - Wanyue Zhang
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Yanling Ma
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Chaojun Yang
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Yanling Yang
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Xiaobin Zhang
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Jie Dai
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - Lijuan Dong
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
| | - William Cw Wong
- 3 Department Family Medicine and Primary Care, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Pengfei Zhao
- 4 WHO Regional Office for the Western Pacific, Manila, Philippines
| | - Lin Lu
- 1 Institute for AIDS/STD Control and Prevention, Yunnan Center for Disease Control and Prevention, Kunming, China
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15
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Su Y, Ding G, Reilly KH, Norris JL, Liu H, Li Z, Wang G, Fang G, Wang N. Loss to follow-up and HIV incidence in female sex workers in Kaiyuan, Yunnan Province China: a nine year longitudinal study. BMC Infect Dis 2016; 16:526. [PMID: 27686152 PMCID: PMC5041379 DOI: 10.1186/s12879-016-1854-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 09/20/2016] [Indexed: 11/10/2022] Open
Abstract
Background Longitudinal studies of female sex workers (FSWs) are vulnerable to loss to follow-up (LTFU) due to this population’s high mobility and low willingness to self-identify as FSWs. LTFU in cohort studies is a critical problem and may lead to bias in estimation of incidence and exposure-outcome associations. The aim of this study was to analyze LTFU and HIV incidence and their associated factors in a 9-year longitudinal study of FSWs in Kaiyuan, Yunnan Province, China. Methods This analysis includes all HIV-1 seronegative FSWs who were recruited into a prospective study in Kaiyuan with at least one follow-up visit after enrollment from March 2006 to November 2013. Participants were visited in 6-month intervals after enrollment. Their demographic and behavioral data and blood specimens for HIV and sexual transmitted disease testing were collected at enrollment and at each follow-up visit. The administrative censoring date was December 31, 2014. Participants were considered LTFU if their last visit occurred 1 year or more before the administrative censoring date. Univariate and multivariable Cox regression models with time-independent variables were used to investigate the hazard ratios (HR) and 95 % confidence intervals (CI) of the factors associated with LTFU and HIV acquisition. Results Of the 1158 FSWs, 950 were defined as LTFUs (LTFU rate: 29.69, 95 % CI: 27.85–31.62 per 100 person years [PYs]), and 33 experienced HIV seroconversions (cumulative incidence: 1.06, 95 % CI: 0.74–1.47 per 100 PYs). After adjustment, we found that FSWs who used drugs were less likely to be LTFU compared with non-drug users (adjust hazard ratio [AHR]= 0.62, 95 % CI: 0.51–0.76), though FSWs who used drug were associated with a higher risk of HIV acquisition (AHR = 3.06, 95 % CI: 1.49–6.30). Also, FSWs who always used condoms with clients in the previous month were associated with a higher risk of LTFU (AHR = 1.51, 95 % CI: 1.15–1.97), while they were negative associated with new HIV infection (AHR = 0.28, 95 % CI: 0.12–0.61). Conclusions A high LTFU rate exists in the Kaiyuan FSW cohort study, and LTFU did not occur at random. Participants retained in the cohort tended to be at higher risk of HIV acquisition, which may result in an overestimate of the incidence of HIV infection from the Kaiyuan FSW cohort.
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Affiliation(s)
- Yingying Su
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China.,National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Guowei Ding
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Kathleen H Reilly
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jessie L Norris
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Huixin Liu
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Zheng Li
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Guixiang Wang
- Kaiyuan Center for Disease Control and Prevention, Kaiyuan, China
| | - Ganggang Fang
- Kaiyuan Center for Disease Control and Prevention, Kaiyuan, China
| | - Ning Wang
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
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16
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Mi G, Wu Z, Wang X, Shi CX, Yu F, Li T, Zhang L, McGoogan JM, Pang L, Xu J, Rou K. Effects of a Quasi-Randomized Web-Based Intervention on Risk Behaviors and Treatment Seeking Among HIV-Positive Men Who Have Sex With Men in Chengdu, China. Curr HIV Res 2016; 13:490-6. [PMID: 26105555 DOI: 10.2174/1570162x13666150624104522] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Revised: 03/04/2015] [Accepted: 06/24/2015] [Indexed: 01/26/2023]
Abstract
The men who have sex with men (MSM) population in China has experienced a recent increase in HIV incidence. Due to the dual stigma and discrimination towards homosexuality and HIV infection, most MSM living with HIV/AIDS are hard to reach by offline intervention initiatives. We recruited HIV-positive MSM participants in Chengdu, China and assessed whether they disclosed their HIV status to partners, motivated a partner to receive testing, used condoms consistently, or initiated antiretroviral therapy. Participants were quasi-randomized to either the intervention or control arm. The intervention group was given instructions for an online program with four modules: an information exchange website, a bulletin board system, individualized online counseling with trained peer educators, and an animation game. All participants were re-assessed at 6 months. The study enrolled 202 HIV-positive MSM. The intervention group had significant increases in disclosing their HIV status to their partners (76.0% vs 61.2%, P=0.0388) and motivating partners to accept HIV testing (42.3% vs 25.5%, P=0.0156) compared with the control group, but there were no between-group differences in receiving early treatment or using condoms consistently. We found that a web-based intervention targeting HIV-positive MSM was an effective tool in increasing the uptake of HIV testing within this high-risk population.
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Affiliation(s)
| | - Zunyou Wu
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Road, Changping District, Beijing 102206, P.R. China.
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17
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Ding Y, Yan H, Ning Z, Cai X, Yang Y, Pan R, Zhou Y, Zheng H, Gao M, Rou K, Wu Z, He N. Low willingness and actual uptake of pre-exposure prophylaxis for HIV-1 prevention among men who have sex with men in Shanghai, China. Biosci Trends 2016; 10:113-9. [PMID: 27052151 DOI: 10.5582/bst.2016.01035] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Little is known about the acceptance and actual uptake of pre-exposure prophylaxis (PrEP) and associated factors in men who have sex with men (MSM) in China. This study is the baseline survey of an intervention study designed to evaluate the effectiveness of tenofovirdisoproxil fumarate (TDF) on a daily use for human immunodeficiency virus (HIV) prevention among MSM in Shanghai, China. From October 2012 to December 2013, a total of 1,033 MSM in Shanghai were recruited by local district Centers for Disease Control and Prevention (CDC) and a MSM community-based non-governmental organization (NGO). Among them, 197 (19.1%) participants expressed willingness to use the TDF group at baseline survey, but only 26 (2.5%) participated in the TDF group and took TDF one tablet a day. Higher willingness to use PrEP was associated with being 45 years or older, non-local residents, having more male sex partners in the past 6 months and not using condom at last anal sex with man. Acutal uptake of PrEP was associated with having ≥ 11 male sex partners in lifetime and reporting no female sex partners in lifetime. Reasons for not participating in TDF group among those who expressed willingness to use PrEP at baseline survey included loss of contact, ineligiblity because of abnormal results for liver or renal function tests, change of mind, and HIV seroconversion before uptake of PrEP. Our findings suggest that promotion of PrEP in MSM remains challenging at current circumstancein China. Future research is needed to solicit effective education and intervention programs to promote acceptance of PrEP among Chinese MSM.
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Affiliation(s)
- Yingying Ding
- Department of Epidemiology, School of Public Health, and the Key Laboratory of Public Health Safety of Ministry of Education, Fudan University
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18
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Zhenhua D, Shuangfeng F, Rong L, Xueqing W, Yaying S, Zhijun L, Weihua J, Fang L, Zhen D, Xiaodong W, Yujing Z, Qinying H. Consistently high HIV prevalence among men who have sex with men in Chengdu city from 2009 to 2014. Int J STD AIDS 2015; 27:1057-1062. [PMID: 26404112 DOI: 10.1177/0956462415606251] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 08/20/2015] [Indexed: 11/17/2022]
Abstract
To describe the trends of the HIV epidemic among men who have sex with men (MSM) in Chengdu city, China, consecutive cross-sectional surveys were conducted by the Chengdu Center for Disease Control and Prevention. These surveys were carried out between 2009 and 2014 according to the protocol of the national HIV Sentinel Surveillance System. For the 2422 MSM who participated in the survey, the overall HIV prevalence was 15.5% (375/2422, 95% CI 14.0-16.9%). Between 2009 and 2014, the HIV prevalence of MSM remained high, with HIV-positivity rates of 15.0%, 15.1%, 16.3%, 13.9%, 17.8% and 14.0% each year respectively (χ2 for trend = 0.008, P = 0.931). However, the majority (89.8%) of participants had had anal sex in the six months prior to the interview, and the percentage always using condoms during anal sex increased over the study period (36.7% in 2009, 39.8% in 2010, 36.9% in 2011, 46.2% in 2012, 65.1% in 2013, 49.0% in 2014; Chi-square for trend = 49.883, P < 0.001). HIV prevalence among MSM in Chengdu city has remained high. Given the continuing high levels of unprotected anal intercourse and high HIV prevalence among MSM, more effective intervention strategies are required to increase the coverage of MSM by risk-reduction interventions and to promote HIV testing among this population.
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Affiliation(s)
- Duan Zhenhua
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
| | - Fan Shuangfeng
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
| | - Lu Rong
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
| | - Wu Xueqing
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
| | - Shi Yaying
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
| | - Li Zhijun
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
| | - Jiang Weihua
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
| | - Liu Fang
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
| | - Dai Zhen
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
| | - Wang Xiaodong
- Chengdu Tongle Health Service and Counseling Center, Chengdu, Sichuan, China
| | - Zhang Yujing
- Chengdu Municipal First People's Hospital/Chengdu Hospital of Traditional and Western Medicine, Chengdu, Sichuan, China
| | - He Qinying
- Chengdu Center for Disease Control and Prevention, Chengdu, Sichuan, China
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