Prevalence, Anatomic Distribution, and Correlates of Chlamydia trachomatis and Neisseria gonorrhoeae Infections Among a Cohort of Men Who Have Sex With Men in Hanoi, Vietnam

Adamson, Paul C; Bhatia, Ramona; Tran, Khoa D C; Bui, Hao; Vu, Diep T.; Shiraishi, Ray W.; Giang, Lê Minh

doi:10.1097/olq.0000000000001626

Cited by 11 publications

(3 citation statements)

References 32 publications

(46 reference statements)

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“…25 For example, sexual networks may have recently expanded with the use of online technologies to find partners and are not limited to local venues and hotspots. 26 A cohort study among MSM in Hanoi, Vietnam indicates that there is an association between meeting sex partners through social networking technology and STI transmission. 27 On an international level, Vietnam’s MSM communities may be recently more connected to MSM communities in other countries.…”

Section: Discussionmentioning

confidence: 99%

Increase in human immunodeficiency virus and syphilis prevalence and incidence among men who have sex with men, vietnam 2015 – 2020

Thanh Nguyen,

Nguyen,

Thanh Hoang

et al. 2023

Int J STD AIDS

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Introduction We assessed trends in HIV and syphilis prevalence, HIV incidence, related risk factors, and preventive behaviors among men who have sex with men (MSM) in Vietnam from 2015 to 2020. Methods Data originated from the HIV Sentinel Surveillance Plus system, which sampled MSM at venues and hotspots in seven of Vietnam’s 63 provinces in 2015, 2016, 2018, and 2020 ( N = 1100-1445 per year; ∼150-300 per province per year). Results HIV prevalence estimates increased from 6.6% (95% CI 4.5–9.6) in 2015 to 13.8% (95% CI 10.5-18.2, p = .001 for trend) in 2020 overall, and separately in An Giang, Can Tho, Hai Phong, and Khanh Hoa provinces but not in Ho Chi Minh City, Hanoi, or Kien Giang. Syphilis prevalence increased from 2.7% (95% CI 1.4-5.1) in 2015 to 12.6% (95% CI 8.7-18.0) in 2020 overall ( p < .001 for trend), and separately in An Giang, Can Tho, and Hai Phong provinces but not in Ho Chi Minh City or Kien Giang. We calculated time-at-risk from first anal sex to first HIV-positive or last HIV-negative test to estimate HIV incidence. Estimated HIV incidence suggested increasing rates of seroconversion from 1.36 per 100 person-years experienced by participants in 2015 to 2.61 per 100 person-years among participants in 2020 (hazard ratio per year 1.13, 95% CI 1.08-1.18, p < .001). There was a statistically significant increase in HIV testing, STI testing, and receipt of free condoms over the period ( p < .05 for trend), and a statistically significant decrease in amphetamine use ( p = .043 for trend). Conclusions Despite prevention efforts and improvements in some risk indicators, consecutive cross-sectional sampling results provide evidence of increasing incidence of HIV and syphilis among MSM in Vietnam, especially outside the major cities. Aggressive HIV prevention and treatment services can be expanded while conducting deeper investigations into the causes of these increases.

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Section: Discussionmentioning

confidence: 99%

Increase in human immunodeficiency virus and syphilis prevalence and incidence among men who have sex with men, vietnam 2015 – 2020

Thanh Nguyen,

Nguyen,

Thanh Hoang

et al. 2023

Int J STD AIDS

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“…2 Infections at extragenital sites are mostly asymptomatic and found in the absence of reported risk behavior and concurrent infection at the genital site. The study by Adamson et al 3 determines that testing limited to urethral specimens would have missed nearly three-quarters of CT/NG infections, supporting the need to move away from genital-centered testing approach in MSM.To further reiterate the need for routine extragenital screening by molecular methods, we would here like to report our study, in which we determined the incidence of extragenital gonorrhea in MSM in India. There are very limited data from our country on MSM.…”

mentioning

confidence: 91%

mentioning

confidence: 99%

Detection of Neisseria gonorrhoeae in Genital and Extragenital Sites in Men Who Have Sex With Men in India

et al. 2022

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E xtragenital infections with Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) are common among men who have sex with men (MSM) and are of public health importance. In the United States, MSM at Centers for Disease Control and Prevention surveillance sites have reported a 375% increase in estimated gonorrhea case rate during the 2010-2018 period. 1 Possible reasons may be due to an actual increase of infections or substantially expanded extragenital screening in MSM. Furthermore, anorectal infections are mostly single site in MSM, that is, up to 91% and 70% for CT and NG respectively. 2 Infections at extragenital sites are mostly asymptomatic and found in the absence of reported risk behavior and concurrent infection at the genital site. The study by Adamson et al. 3 determines that testing limited to urethral specimens would have missed nearly three-quarters of CT/NG infections, supporting the need to move away from genital-centered testing approach in MSM.To further reiterate the need for routine extragenital screening by molecular methods, we would here like to report our study, in which we determined the incidence of extragenital gonorrhea in MSM in India. There are very limited data from our country on MSM. The study was approved by the Institute Ethics committee for postgraduate research, AIIMS.From February 2017 to November 2018, clinic attendees with a history of homosexual activities in the last 6 months were enrolled. After baseline evaluation, pharyngeal, rectal, and urethral swabs were collected in triplicate for Gram stain, culture, and in-house polymerase chain reactions (PCRs), targeting opa gene and porA pseudogene of NG. 4

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Prevalence of five curable sexually transmitted infections and associated risk factors among tertiary student men who have sex with men in Nairobi, Kenya: a respondent-driven sampling survey†

et al. 2023

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BackgroundYoung men who have sex with men (MSM), are a key population at high risk of sexually transmitted infections (STIs) yet are often underrepresented in research in settings where same sex sexual behavior is criminalized. We conducted a respondentdriven sampling (RDS) bio-behavioral survey to estimate the prevalence of ve curable STIs: Chlamydia trachomatis (CT), Mycoplasma genitalium (MG), Neisseria gonorrhea (NG), Trichomonas vaginalis (TV) and syphilis, and associated risk factors among tertiary student MSM (TSMSM) in Nairobi, Kenya. MethodsBetween February and March 2021, we recruited 248 TSMSM aged ≥ 18 years who self-reported engaging in anal and/or oral sex with another man in the past year. Samples collected included urine, provider-collected anorectal and oropharyngeal swabs for pooled CT/MG/NG/TV testing using multiplex nucleic acid ampli cation tests (NAATs), and venous blood for serological syphilis screening using Rapid plasma reagin (RPR) followed by Treponema pallidum haemagglutination assay (TPHA) for con rmation of current infection. Participants self-completed a behavioral survey on REDCap digital platform.Data analysis was done using RDS-Analyst (v0.72) and Stata (v15). Differences in proportions were examined using the chisquare (X 2 ) test, and unweighted multivariate logistic regression was used to assess factors associated with STI prevalence.

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Prevalence, Anatomic Distribution, and Correlates of Chlamydia trachomatis and Neisseria gonorrhoeae Infections Among a Cohort of Men Who Have Sex With Men in Hanoi, Vietnam

Abstract: Among 1489 HIV-negative men who have sex with men in Hanoi, Vietnam, 28.5% had Neisseria gonorrhoeae or Chlamydia trachomatis infections; 73.9% of chlamydia infections were rectal, and 70.5% of gonorrhea infections were oropharyngeal.

Cited by 11 publications

References 32 publications

Increase in human immunodeficiency virus and syphilis prevalence and incidence among men who have sex with men, vietnam 2015 – 2020

Increase in human immunodeficiency virus and syphilis prevalence and incidence among men who have sex with men, vietnam 2015 – 2020

Detection of Neisseria gonorrhoeae in Genital and Extragenital Sites in Men Who Have Sex With Men in India

Prevalence of five curable sexually transmitted infections and associated risk factors among tertiary student men who have sex with men in Nairobi, Kenya: a respondent-driven sampling survey†

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