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High Proportion of HIV Serodiscordance among HIV-Affected Married Couples in Northern Vietnam

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Title: High Proportion of HIV Serodiscordance among HIV-Affected Married Couples in Northern Vietnam
Authors: Sawada, Ikumi / Tanuma, Junko / Do, Cuong Duy / Doan, Tra Thu / Luu, Quynh Phuong / Nguyen, Lan Anh Thi / Vu, Tuong Van Thi / Nguyen, Tuan Quang / Tsuchiya, Naho / Shiino, Teiichiro / Yoshida, Lay-Myint / Pham, Thanh Thuy Thi / Ariyoshi, Koya / Oka, Shinichi
Issue Date: 21-Apr-2015
Publisher: Public Library of Science
Citation: PLOS ONE, 10(4), e0125299; 2015
Abstract: Introduction: Little is known about the state of HIV transmission among married couples in Vietnam. This study aims to clarify HIV serostatus in this group and elucidate risk factors for intra-marital HIV transmission. Methods: In 2012, we enrolled a group of HIV-positive married men registered at the HIV outpatient clinic of a referral hospital in northern Vietnam, along with their wives. Sociodemographic, behavioural and clinical data were collected from men and wives. HIV serodiscordant couples were followed until March 2014 to determine seroconversion rate. A phylogenetic analysis was performed based on env V3 sequence to detail cluster formation among men. Results: Of the 163 HIV-positive men enrolled in the study, 101 (62.0%) had wives testing HIV-negative. Half ofmen reported injecting drug use (IDU) as a likely transmission route. Couples reported a high incidence of unprotected sexual intercourse prior to diagnosis; the median (inter quartile range) was 4 (4-8) times per month. Only 17 couples (10.4%) reported using condoms during at least half these instances. Multivariable analysis revealed IDU history among men was independently associated with HIV-negative wives (adjusted OR 0.31; 95%CI 0.10-0.95, p=0.041). Phylogenetic analysis of 80 samples indicated CRF01-AE. Of these, 69 (86.3%) clustered with IDU-associated viruses from Vietnam. No HIV seroconversion was identified during a follow-up of 61 serodiscordant couples, with 126.5 person-years of observation during which HIV-infectedmen were on antiretroviral drug therapy (ART). Conclusion: High HIV serodiscordance was observed among HIV-affected married couples in northern Vietnam. A large number of at-risk wives therefore remain HIV-negative and can be protected with measures including proper use of ART if couples are made aware of the serodiscordance through screening.
URI: http://hdl.handle.net/10069/35497
DOI: 10.1371/journal.pone.0125299
Rights: © 2015 Sawada et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/35497

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