Impact of Condom Use and Standardized Sexually Transmitted Disease Treatment on HIV Prevention Among Men Who Have Sex with Men in Hunan Province: Using the Asian Epidemic Model

Abstract We evaluated the HIV/AIDS epidemic among men who have sex with men (MSM) in Hunan Province using the Asian Epidemic Model (AEM) and explored the impact of both condom use and standardized STD treatment on HIV prevention programs. The AEM was used to estimate HIV infection under four different scenarios: (1) condom use among MSM maintained at the 2005 level, (2) condom use among MSM improved since 2005, (3) the sexually transmitted infection (STI) prevalence rate among MSM maintained at the 2008 level, and (4) the STI prevalence rate among MSM improved since 2008. Compared with the rate of condom use at the 2005 level among MSM, if the rate of condom use had continuously improved, the number of new infections would have been reduced by 79.1% and the number of people living with HIV and AIDS would decrease by more than 8600 by 2020 and the cumulative number of new infections would have been reduced by 63.6% since 2006 while the number of new HIV infections among females would decline from 2015 with a drop of over 35% by 2020. When compared with the projection based on an unchanged rate of STI infection, the number of new HIV infections would decrease by 49.4% by 2020, and the decreased number of people living with HIV and AIDS would be more than 4000. The total number of 5200 newly infected HIV cases could be reduced from 2006 to 2020 and the number of newly infected HIV cases among the general female population would be reduced by 15.4%. With both the increased rate of condom use and standardized STD treatment for the MSM population in Hunan Province, the spread of HIV infection in both MSM and the general female population would decrease.     

Potential Bridges for HIV Infection to Men Who Have Sex With Men in Guangzhou,China

To assess the potential for HIV acquisition among men who have sex with men (MSM) in Guangzhou, China, we conducted a cross-sectional, anonymous, face-to-face survey of MSM in the metropolitan area of Guangzhou, China. As a pilot recruitment for a cohort study, participants were recruited by convenience sampling through newspaper and television advertising, website information, and respondent referral. Blood samples were tested for HIV, hepatitis B (HBV), hepatitis C (HCV), and syphilis. Client-centered HIV and STD counseling was provided.A total of 201 MSM were interviewed and 200 blood samples were tested. The prevalence of HIV antibody was 0% (97.5% CI 0–1.8%); 17.5% of MSM were HBV surface antigen positive; 1.0% had HCV antibodies; 10.5% had antibodies to syphilis. Syphilis seropositivity was associated with sex with a foreign MSM in the last six months and 10.4% reported sex with a foreign MSM overall. The majority (54.7%) reported unprotected anal sex with other men. Nearly one-third (31.8%) had regular female partners; 25.9% were currently married to a woman; 6% had casual female partners; 4.5% had sex with a female sex worker; 4.5% had sex with a male sex worker; and 12.9% had unprotected vaginal sex and unprotected anal sex with a man in the past six months. Only one MSM reported injection drug use (0.5%). The currently low prevalence of HIV but high level of unprotected anal sex, high prevalence of syphilis infection, and sexual networks that include foreign MSM point to a transient window for HIV prevention among MSM in Guangzhou. We recognize challenges to recruiting a representative sample of MSM and retaining them in longitudinal cohort studies.     

Increase in HCV incidence among men who have sex with men in Amsterdam most likely caused by sexual transmission

We retrospectively screened 1836 men who have sex with men (MSM) participating in the Amsterdam Cohort Studies (1984-2003) for hepatitis C virus (HCV) antibodies. HCV incidence was 0.18/100 person-years (PY) in human immunodeficiency virus (HIV)-positive MSM (8/4408 PY [95% confidence interval {CI}, 0.08-0.36]) but was 0/100 PY in MSM without HIV (0/7807 PY [95% CI, 0.00-0.05]). After 2000, HCV incidence among HIV-positive men increased 10-fold to 0.87/100 PY (5/572 PY [95% CI, 0.28-2.03]). Additional hospital cases (n=34) showed that MSM in Amsterdam who acquired HCV infection after 2000 reported high rates of ulcerative sexually transmitted infections (59%) and rough sexual techniques (56%), denied injection drug use, and were infected mainly with the difficult-to-treat HCV genotypes 1 (56%) and 4 (36%). Phylogenetic analysis showed 3 monophyletic clusters of MSM-specific HCV strains. The emergence of an MSM-specific transmission network suggests that HIV-positive MSM with high-risk sexual behaviors are at risk for sexually acquired HCV. Targeted prevention and routine HCV screening among HIV-positive MSM is needed to deter the spread of HCV.     

Unlinked anonymous HIV prevalence among New Zealand sexual health clinic attenders: 2005-2006

This unlinked anonymous study aimed at determining the prevalence of HIV among sexual health clinic attenders having blood samples taken for syphilis and/or hepatitis B serology in six major New Zealand cities over a 12-month period in 2005-2006. Overall, seroprevalence was five per 1000 (47/9439). Among men who have sex with men (MSM), the overall prevalence and that of previously undiagnosed HIV were 44.1 and 20.1 per 1000, respectively. In heterosexual men, the overall prevalence was 1.2 per 1000 and in women 1.4 per 1000. HIV remains to be concentrated among homosexual and bisexual men. Comparison with a previous survey in 1996-1997 suggests an increase in the prevalence of undiagnosed HIV among MSM and also an increase in the number of MSM attending sexual health clinics. The low prevalence of HIV among heterosexuals suggests no extensive spread into the groups identified at risk of other sexually transmitted infections.     

Possible Increase in HIV and Syphilis Prevalence Among Men Who Have Sex with Men in Guangzhou, China: Results from a Respondent-Driven Sampling Survey

A respondent-driven sampling survey was conducted to investigate HIV related serological and behavioral characteristics of men who have sex with men (MSM) in Guangzhou, China, and to identify associated factors potentially driving the epidemic. Respondent- Driven Sampling Analysis Tool and SPSS were used to generate adjusted estimates and to explore associated factors. Three hundred seventy-nine eligible participants were recruited. The adjusted prevalence of HIV and current syphilis infection are 5.2% and 17.5% respectively. 60.3% have unprotected anal sex in the past 6 months. Unprotected anal sex, having receptive anal sex and current syphilis infection are significant factors associated with HIV infection. The potential for a rapid rise of HIV and syphilis infections among MSM in Guangzhou exists. Targeted interventions with voluntary counseling and testing (VCT) and sexually transmitted infection (STI) services are needed to address the epidemic, with a focus on such subgroups as those of with current syphilis, and non-official Guangzhou residence status.     

Management of sexually transmitted infections in HIV positive individuals

PURPOSE OF REVIEW: This review aims to summarize recent developments in the epidemiology and management of sexually transmitted infections in HIV positive individuals. It will also discuss briefly the legal aspects of disclosure in relation to HIV transmission. RECENT FINDINGS: There has been a dramatic increase in the reported number of cases of syphilis globally in recent years. In the United Kingdom this has mainly been observed among HIV positive men who have sex with men (MSM). Since 2003 there have been a series of outbreaks of lymphogranuloma venereum reported in several European cities occurring mostly in HIV positive MSM. Sexual transmission of hepatitis C is increasing and appears to be more common in HIV positive MSM. Legal issues regarding HIV transmission have also come to the fore, becoming an important part of the discussion of sexual health with an HIV positive patient. SUMMARY: Increases in sexually transmitted infection among HIV positive individuals suggest a worrying lack of adherence to safe sex guidelines and needs to be addressed urgently. The transmission of HIV is facilitated by the presence of certain sexually transmitted infections. Management of sexual health is an essential part of HIV care.     

Prevalence and Related Risk Behaviors of HIV, Syphilis, and Anal HPV Infection Among Men who have Sex with Men from Beijing, China

Specific risk behaviors related to different sexually transmitted infections have not been widely evaluated among men who have sex with men in China. In the present study, a total of 302 MSM were recruited from Beijing with a prevalence of HIV, syphilis, and anal HPV infection as 9.9, 19.2 and 71.4%, respectively. Lower education level was observed to be related to higher infection rate of HIV and syphilis. “Ever found sexual partners in gay venues” was significantly associated with HIV infection as well. “Taking anilinction as regular sexual behavior” was observed to be a significant predictor for anal HPV infection.     

Hepatitis B Infection and Association with Other Sexually Transmitted Infections Among Men Who Have Sex with Men in Peru

To assess the epidemiology of hepatitis B virus (HBV) infection among men who have sex with men (MSM) in Peru, we evaluated the prevalence and associated risk factors for HBV serologic markers among participants of a HIV sentinel surveillance conducted in 2002–2003. The standardized prevalences for total antibodies to hepatitis B core antigen (anti-HBc) and hepatitis B surface antigen (HBsAg) were 20.2% and 2.8%, respectively. Individuals with human immunodeficiency virus (HIV-1) infection had significantly higher anti-HBc (44.3% versus 19.3%) and HBsAg (9.5% versus 2.3%) prevalences than uninfected men. Increasing age (adjusted odds ratio [AOR] = 1.06), versatile sexual role (AOR = 1.59), sex in exchange for money/gifts (AOR = 1.58), syphilis (AOR = 1.74), HIV-1 infection (AOR = 1.64), and herpes simplex virus type 2 (HSV-2, AOR = 2.77) infection were independently associated with anti-HBc positivity, whereas only HIV-1 infection (AOR = 3.51) and generalized lymph node enlargement (AOR = 3.72) were associated with HBsAg positivity. Pre-existing HBV infection is very common among Peruvian MSM and was correlated with sexual risk factors. MSM in Peru constitute a target population for further HBV preventive and treatment interventions.     

HIV-Untested Men Who Have Sex with Men in South Africa: The Perception of Not Being at Risk and Fear of Being Tested

A community-based needs assessment among men who have sex with men (MSM) in South Africa found that 27 % (n = 280/1,045) of MSM had never been tested for HIV. The most frequently reported reasons for not having been tested were the perception of not being at risk (57 %) and fear of being tested (52 %). This article explores factors associated with these two reasons among the untested MSM. In multiple logistic regressions, the perception of not being at risk of HIV infection was negatively associated with being black, coloured or Indian, being sexually active, knowing people living with HIV, and a history of sexually transmitted infections (STIs) in the past 24 months (adj. OR = .24, .32, .38, and .22, respectively). Fear of being tested for HIV was positively associated with being black, coloured or Indian, preferred gender expression as feminine, being sexually active, a history of STIs, and experience of victimization on the basis of sexual orientation (adj. OR = 2.90, 4.07, 4.62, 5.05, and 2.34, respectively). Results suggest that HIV prevention programs directed at South African MSM will be more effective if testing and treatment of STIs are better integrated into HIV testing systems. Finally, social exclusion on the basis of race and sexual orientation ought to be addressed in order to reach hidden, at-risk, populations of MSM.     

HIV Prevalence and Related Risk Factors in Men Who Have Sex with Men in Bamako,Mali: Findings from a Bio-behavioral Survey Using Respondent-Driven Sampling

Using respondent driven sampling, we conducted a cross-sectional bio-behavioral survey among men who have sex with men (MSM) in Bamako, Mali. Eligibility criteria included age ≥18 years and having had sex with another man in the last 6 months. We enrolled 552 MSM, 99.6% were tested for HIV. MSM in Bamako were young (69.6% ≤24 years) and educated (63.7% ≥secondary). HIV prevalence among MSM in Bamako was 13.7; 90.1% of HIV-infected men were unaware of their HIV status. Almost one-third had never been tested for HIV. Factors associated with higher odds of HIV included younger age, being receptive with last partner, condom breaking during anal sex in last 6 months, talking to peer educator about HIV, and having sexually transmitted infection symptoms in past year. The results suggest the need for enhanced HIV prevention and treatment services targeted at MSM in Bamako, with emphasis on repeated HIV testing.     

The changing prevalence of hepatitis B virus infection among men who have sex with men who attended a sexually transmitted infections clinic in Edinburgh, Scotland between 1989 and 2003

The aim of the study was to discover if the prevalence of serological markers of hepatitis B virus infection among men who have sex with men (MSM) who attended a sexually transmitted infections clinic in Edinburgh, Scotland had changed in a 15-year period. This was a retrospective study of 3334 MSM attending the clinic as new patients. Forty-four men (1%) had hepatitis B surface antigenaemia. Overall, sera from 398 (12%) men gave positive results for anti-HBc. The seroprevalence of HBV in men aged 25-34 years and older men declined significantly during the study period. There was no significant change in seropositivity for anti-HBc in men aged 16-24 years. The proportion of men who had been vaccinated previously rose significantly during the most recent three-year period. Although there has been a decline in the prevalence of infection in clinic attendees, there is continued transmission of HBV in the local community.     

HIV and STI Testing and Related Factors Among Men Who Have Sex with Men in Estonia

HIV and sexually transmitted infections (STI) testing rates among men who have sex with men (MSM) in Estonia are low. We collected data from 265 MSM in a national, online survey. Lifetime HIV testing was related to risky sexual behaviors and contacts with health care services, while lifetime STI testing was related only to contacts with health care services. In addition, some personal values were significant predictors of testing. For example, high achievement (personal success through demonstrating competence according to social standards) had a negative impact on lifetime HIV testing, and high interpersonal conformity (avoiding upsetting others) had a negative impact on lifetime STI testing. The results demonstrate the need to develop gay-friendly health services and to recognize the role of personal values and individual differences in values when designing attractive interventions to increase HIV/STI testing rates among MSM.     

Sexual Risk Taking,STI and HIV Prevalence Among Men Who Have Sex with Men in Six Indonesian Cities

Using surveillance data on men who have sex with men (MSM) from six Indonesian cities, this article reports prevalence of sexual risk taking, HIV and other sexually transmitted infections. Factors associated with HIV, other STIs and consistent condom use were assessed. Behavioral data were collected from 1,450 MSM, among whom 749 were tested for HIV and syphilis and 738 for gonorrhea and Chlamydia. Associations were assessed using multivariate logistic regression. Over 80% of MSM knew HIV transmission routes, 65% of MSM had multiple male sexual partners, 27% unprotected anal sex with multiple male partners, and 27% sex with a female in the prior month. Consistent condom use ranged from 30 to 40% with male partners and 20 to 30% with female partners, depending upon partner type. HIV prevalence averaged 5.2%, but was 8.0% in Jakarta. Prevalence of rectal gonorrhea or Chlamydia was 32%. Multivariate analyses revealed recent methamphetamine use and current rectal gonorrheal or chlamydial infection to be associated with HIV infection. The data confirm diverse sexual networks and substantial sexual risk-taking, despite relatively high levels of education and HIV-related knowledge. In addition to promoting partner reduction and more consistent condom and lubricant use, prevention efforts must also address substance abuse.     

Determinants of HIV Incidence Disparities Among Young and Older Men Who Have Sex with Men in the United States

This study sought to determine why young men who have sex with men (MSM) have higher HIV incidence rates than older MSM in the United States. We developed hypotheses that may explain this disparity. Data came from peer-reviewed studies published during 1996–2016. We compared young and older MSM with respect to behavioral, clinical, psychosocial, and structural factors that promote HIV vulnerability. Compared with older MSM, young MSM were more likely to have HIV-discordant condomless receptive intercourse. Young MSM also were more likely to have “any” sexually transmitted infection and gonorrhea. Among HIV-positive MSM, young MSM were less likely to be virally suppressed, use antiretroviral therapy, and be aware of their infection. Moreover, young MSM were more likely than older MSM to experience depression, polysubstance use, low income, decreased health care access, and early ages of sexual expression. These factors likely converge to exacerbate age-associated HIV incidence disparities among MSM.     

HIV Risk Behavior Among HIV-Infected Men Who have Sex with Men in Bangkok, Thailand

We assessed prevalence of sexually transmitted infection (STIs), sexual risk behaviors, and factors associated with risk behaviors among HIV-infected MSM attending a public STI clinic serving MSM in Bangkok, Thailand. Between October 2005–October 2007, 154 HIV-infected MSM attending the clinic were interviewed about sexual risk behaviors and evaluated for STIs. Patients were examined for genital ulcers and had serologic testing for syphilis and PCR testing for chlamydia and gonorrhea. Results showed that sexual intercourse in the last 3?months was reported by 131 men. Of these, 32% reported anal sex without a condom. STIs were diagnosed in 41%. Factors associated with having sex without a condom were having a steady male partner, having a female partner and awareness of HIV status <1?month. Sexual risk behaviors and STIs were common among HIV-infected MSM in this study. This highlights the need for increased HIV prevention strategies for HIV-infected MSM.     

HIV Prevalence and Correlates of Unprotected Anal Intercourse Among Men Who Have Sex with Men, Jinan, China

China’s HIV epidemic may be shifting towards predominantly sexual transmission and emerging data point to potential increases in HIV prevalence among men who have sex with men (MSM). There is particular need to assess the extent of risk behavior among MSM outside of China’s most cosmopolitan cities. We conducted a respondent-driven sampling survey (N = 428) to measure HIV seroprevalence and risk behavior among MSM in Jinan, China, the provincial capital of Shandong. HIV prevalence was 0.5% (95% confidence interval [CI] 0.1–1.0). Unprotected anal intercourse (UAI) in the last 6 months (reported by 61.4%) was associated with buying or selling sex to a man in the last 6 months, syphilis infection, multiple partners in the last month, low HIV knowledge and migrant status. No participant had previously tested for HIV. Risk for HIV transmission is widespread among MSM throughout China; basic prevention programs are urgently needed.     

Associations Between Perceived Characteristics of the Peer Social Network Involving Significant Others and Risk of HIV Transmission Among Men Who Have Sex with Men in China

The HIV epidemic among men who have sex with men (MSM) in China is severe. Peer can induce risky and preventive behaviors among MSM. We interviewed 220 MSM who had at least one significant other who was a peer MSM (SOPM). Interviews were conducted at two gay venues in Suzhou, China, which reported five HIV-related outcomes: HIV (8.2 %), syphilis (16.4 %), self-reported sexually transmitted infection symptoms (14.6 %), unprotected anal intercourse (UAI; 58.6 %) and having had taken up HIV testing (40.4 %). Adjusting for significant background variables, participants’ perceived characteristics of the social network of SOPM, such as practicing risk behavior (e.g. UAI) or preventive behaviors (e.g. HIV antibody testing), or possessing HIV-related perceptions (e.g. dislike in condom use), were significantly associated with some of the five aforementioned outcomes (p < 0.05). Peer education and peer-based interventions involving significant others are hence potentially important in HIV prevention targeting MSM. Future pilot intervention studies are warranted.     

Epidemic of Sexually Transmitted Hepatitis C Virus Infection Among HIV-Infected Men

Sexual contact is thought to be an inefficient mode of hepatitis C virus (HCV) transmission. However, reports of sexually transmitted HCV infection among HIV-infected men who have sex with men (MSM) began to appear in 2004. The patients were of early middle age with well-controlled HIV infection, participated in unprotected receptive sex, and frequently used noninjection recreational drugs. Molecular studies showed evidence of clusters of transmission between patients in different countries in Europe. Spontaneous clearance was relatively rare, but treatment with pegylated interferon and ribavirin resulted in cure in about two thirds of patients. Of concern was the finding of moderately advanced fibrosis during the early stages of HCV infection. HIV-infected MSM are a new risk group for HCV infection and so should be screened regularly for HCV infection.     

Promoting Regular Testing: An Examination of HIV and STI Testing Routines and Associated Socio-Demographic,Behavioral and Social-Cognitive Factors Among Men Who have Sex with Men in New South Wales,Australia

Human immunodeficiency virus (HIV) and sexually transmitted infections (STI) testing rates are amongst the highest in the world among men who have sex with men (MSM) in Australia. However, notable minorities have never tested and many MSM have not tested recently. To examine testing routines and assess covariates of testing, an online survey was conducted among MSM in New South Wales. Five hundred and eighty non-HIV positive MSM (Mean age: 29.33 years) were randomized to answer questions on barriers to testing for HIV or STI. One in five (20.9 %) non-HIV-positive participants had never tested for HIV, 27.2 % had no HIV testing routines, 22.8 % had a moderate HIV testing routines, and 29.1 % had strong HIV testing routines. Similar patterning was observed for STI testing. In multivariate analyses participants’ knowledge, beliefs, attitudes, subjective norms and perceived behavioral control were moderately related to HIV and/or STI testing routines and some associations were specific to either HIV or STI testing or to particular routines. Findings highlight that multiple social-cognitive factors each play a role in explaining HIV and STI testing among MSM. To effectively promote regular testing in MSM, programs face the challenge of having to address a range of hurdles, rather than a few major obstacles.     

Acute hepatitis C infection in HIV positive men who have sex with men in Paris, France, 2001-2004

In mid-2004, three Parisian hospital wards informed the Institut de veille sanitaire of recent acute hepatitis C in HIV-infected (HIV+) men who had sex with men (MSM). These cases for whom none of the usual bloodborne routes for hepatitis C (HCV) transmission was found, reported having had unprotected sex. In October 2004, we conducted a retrospective investigation in Parisian hospital wards to explore HCV modes of transmission in recent acute hepatitis C in HIV+ MSM. Patient demographics, clinical and biological status of HIV infection, reasons for HCV testing, sexual behaviour and risk factors for HCV transmission within the 6 months before hepatitis onset were collected from medical records. An anonymous self-administered questionnaire on sexual behaviour within the six months before hepatitis onset was also offered to all cases. We identified 29 cases of acute hepatitis C in HIV+ MSM with onset from April 2001 to October 2004. HIV infection was asymptomatic for 76%. Median age at hepatitis C onset was 40 (28-54) years. In all records, were noted unprotected anal sex, fisting in 21% and a concomitant sexually transmitted infection (STI) in 41%. Median time between HIV diagnosis and HCV infection was 6.5 years (0-22). From the 11 self-administered questionnaires completed, 10 reported an STI, 8 'hard' sexual practices, 6 bleeding during sex and 5 fisting. HCV transmission probably occurred through bleeding during unprotected traumatic anal sex among HIV+ MSM and may be facilitated by STI mucosal lesions. This report stresses the continuous need to strongly advocate safer sex to MSM.