High rates of undiagnosed HIV infections in a community sample of gay men in Melbourne, Australia

Which Gay and Bisexual Men Attend Community-Based HIV Testing Services in Australia? An Analysis of Cross-Sectional National Behavioural Surveillance Data

In Australia, HIV testing services have become increasingly available in non-traditional settings such as peer-led, community-based services to expand access and increase uptake of HIV testing among gay and bisexual men (GBM). This study aimed to compare the socio-demographic and behavioural characteristics of GBM whose last HIV test was conducted at a community-based service to GBM whose last test was at a traditional clinical setting. We analysed behavioural surveillance data collected from 5988 participants in seven states and territories in the period 2016-2017. We found that non-HIV-positive GBM who attended community-based services were largely similar to men attending clinic-based settings, particularly in terms of sexual practice and risk of HIV. However, non-HIV-positive GBM who were younger, born in Asia, more socially engaged with other gay men but who had not recently used PrEP were more likely to attend community-based services for their last HIV test. This study points to the successful establishment of community-based HIV testing services in Australia as a way to attract subgroups of GBM at potentially higher risk of HIV.

Prevalence of sexually transmissible infections and HIV in men attending sex-on-premises venues in Australia: a systematic review and meta-analysis of observational studies

Background In Australia, men who have sex with men (MSM) have high rates sexually transmissible infections (STIs) and sex-on-premises venue (SOPV) patrons are at risk. This paper assesses Neisseria gonorrhoeae (NG), Chlamydia trachomatis (CT), syphilis and HIV prevalence in men tested at Australian SOPVs and describes testing services.

METHODS

EMBASE, Medline, PubMed and international conference proceedings were searched for articles reporting on-site SOPV testing between 1 January 2000 and 31 January 2017. Meta-analysis calculated pooled prevalence estimates of STIs by anatomical site.

RESULTS

Twelve cross-sectional studies were identified. Most (8/12) were local sexual health clinics (SHC) outreach services. Participants' mean age was 41.1 years (95% confidence interval (CI) 37.0-43.3; range 17 to 84 years). Testing included CT and NG (9/12), HIV (8/12) and syphilis (5/12). CT and NG prevalence overall summary estimates were 3.4% (95% CI 1.9-5.2%, I2 = 88.7%, P < 0.01) and 1.3% (95% CI 0.7-2.2%, I2 = 75.5%, P < 0.01) respectively. CT and NG prevalence was highest in the ano-rectum and oro-pharynx respectively. The HIV and syphilis pooled estimates were 2.3% (95% CI 1.6-2.9%, I2 = 93.1%, P < 0.01) and 3.2% (95% CI 1.8-4.6%, I2 = 72.8%, P < 0.01) respectively. Participation rate varied.

CONCLUSION

This review examines HIV and STI testing in Australian SOPVs before HIV pre-exposure prophylaxis (PrEP). Findings indicate a high prevalence of STIs. PrEP use and resultant condomless sex may influence STI prevalence. Further research is required to determine the effect of PrEP on the STI prevalence among SOPV patrons.

Trends and predictors of recent HIV testing over 22 years among a clinic sample of men who have sex with men in South Australia

Increasing the frequency of HIV testing is crucial for effective HIV prevention and care. The aim of the present study was to determine whether there has been a change in HIV testing among men who have sex with men (MSM) at the South Australia Specialist Sexual Health (SASSH) clinic over the past two decades.

METHODS

Computerised medical records of MSM who attended the SASSH at their first visit between 1994 and 2015 were used to determine whether HIV testing had changed among MSM. First HIV tests in each calendar year and return tests within 12 months were analysed. Factors associated with recent HIV testing were also examined.

RESULTS

There were 24036 HIV tests conducted among 8163 individual MSM over the study period. The proportion of newly registered MSM who reported ever being tested for HIV declined (P_trend=0.030), the proportion who reported recent HIV testing did not change (P_trend=0.955) and the proportion who have had current HIV testing increased (P_trend=0.008). The proportion of MSM who returned to the clinic for HIV testing within 12 months did not change (P_trend >0.05), with less than 40% of MSM returning for HIV testing. Factors independently associated with recent HIV testing included MSM aged ≥20 years, (odds ratio (OR) 1.79; 95% confidence interval (CI) 1.53-2.10), higher education (OR 1.28; 95% CI 1.12-1.45), non-Caucasian (African OR 1.68; 95% CI 1.30-2.17), having multiple sex partners (OR 1.47; 95% CI 1.29-1.69), having had sex interstate (OR 1.61; 95% CI 1.42-1.82) or overseas (OR 1.53; 95% CI 1.33-1.76) and injecting drug use (OR 1.56; 95% CI 1.29-1.88).

CONCLUSIONS

HIV testing rate among MSM attending SASSH was suboptimal. New approaches are needed to increase the uptake and early detection of HIV infection among the high-priority MSM population.

Comparing non-occupational post-exposure prophylaxis drug regimens for HIV: insights from a linked HIV surveillance system

Background International non-occupational post-exposure prophylaxis (NPEP) guidelines recommend routine use of three drug NPEP regimens, despite absence of evidence for greater prevention efficacy compared with two drug regimens. This study examines the potential for excess HIV seroconversions among high-risk men who have sex with men (MSM) reporting receptive anal intercourse with a source of unknown HIV serostatus (RAIU) following a two-drug versus a three-drug NPEP regimen.

METHODS

Data for MSM in the Victorian NPEP service database between 10 August 2005 and 31 December 2012 were linked with all Victorian HIV notifications up to 31 December 2013. The primary outcome was NPEP failure following NPEP presentation among MSM reporting RAIU, stratified by the number of drugs prescribed.

RESULTS

Among 1482 MSM reporting 2002 episodes of RAIU and prescribed two- or three-drug NPEP, 70 seroconverted to HIV, but only 19 were considered possible NPEP failures. HIV diagnosis incidence among men reporting RAIU was 1.2/100 person years (PY) (95%CI=1.0-1.6); 1.1/100 PY (95%CI=0.8-1.4) among MSM prescribed two drugs and 2.2/100 PY (95%CI=1.4-3.7) among MSM prescribed three drugs (P<0.01). Of the 19 possible NPEP failures, 13 (0.7%) were prescribed two drugs and six (2.7%) three drugs (P<0.001).

CONCLUSIONS

This study suggests that two-drug NPEP regimens do not result in excess seroconversions compared with three-drug regimens when used following RAIU. Clinical services should carefully consider their use of three drug NPEP and whether resources might be better invested in other prevention strategies, particularly pre-exposure prophylaxis (PrEP).

Undiagnosed HIV infections among gay and bisexual men increasingly contribute to new infections in Australia

Introduction

We determined the contribution of undiagnosed HIV to new infections among gay and bisexual men (GBM) over a 12‐year period in Australia where there has been increasing focus on improving testing and HIV treatment coverage.

Methods

We generated annual estimates for each step of the HIV cascade and the number of new HIV infections for GBM in Australia over 2004 to 2015 using relevant national data. Using Bayesian melding we then fitted a quantitative model to the cascade and incidence estimates to infer relative transmission coefficients associated with being undiagnosed, diagnosed and not on ART, on ART with unsuppressed virus, or on ART with suppressed virus.

Results

Between 2004 and 2015, we estimated the percentage of GBM with HIV in Australia who were unaware of their status to have decreased from 14.5% to 7.5%. During the same period, there was a substantial increase in the number and proportion of GBM living with HIV on treatment and with suppressed virus, with the number of virally suppressed GBM increasing from around 3900 (30.2% of all GBM living with HIV) in 2004 to around 14,000 (73.7% of all GBM living with HIV) in 2015. Despite the increase in viral suppression, the annual number of new infections rose from around 660 to around 760 over this period. Our results have a wide range due to the uncertainty in the cascade estimates and transmission coefficients. Nevertheless, undiagnosed GBM increasingly appear to contribute to new infections. The proportion of new infections attributable to undiagnosed GBM almost doubled from 33% in 2004 to 59% in 2015. Only a small proportion (<7%) originated from GBM with suppressed virus.

Discussion

Our study suggests that an increase in HIV treatment coverage in Australia has reduced the overall risk of HIV transmission from people living with HIV. However, the proportion of infections and the rate of transmission from undiagnosed GBM has increased substantially. These findings highlight the importance of HIV testing and intensified prevention for Australian GBM at high risk of HIV.

Rethinking Risk, Culture, and Intervention in Collective Sex Environments

This article provides a narrative overview of research on HIV/STI risk and collective sexual behavior based on an inclusive analysis of research on environments where people gather for sexual activity-sex clubs, swingers' clubs, bathhouses, parks, private sex parties, etc. The aim is to analyze how collective sex has been approached across disciplines to promote conversation across paradigms and suggest new lines of inquiry. Attention to context-such as the location of sex-was a necessary redress to universalizing models of sexual risk-taking behavior, leading to insights rooted in the particularities of each environment and its users. However, the identification of ever more precise risk groups or environmental idiosyncrasies eventually becomes theoretically restrictive, leading to an overestimation of the uniqueness of sexual enclaves, and of the difference between any given enclave and the broader social milieu. Using a theoretical framework of transgression to interpret the interdisciplinary literature, similarities in the spatial and social organization of collective sex environments are identified. Insights generated from this complementary perspective are then applied to understandings of collective sex: first, the example of male-female (MF) "swingers" is used to illustrate the need to establish, rather than assume, the distinctiveness of each non-normative sexual enclave, and to broaden the conceptualization of context; second, questions are raised about the practicality of interventions in collective sex environments. Finally, new lines of intellectual inquiry are suggested to shed light not just on collective sex but on sociosexual issues more generally, such as increasing protective sexual health behavior or negotiating consent in sexual encounters.

Acceptability and HIV Prevention Benefits of a Peer-Based Model of Rapid Point of Care HIV Testing for Australian Gay, Bisexual and Other Men Who Have Sex with Men

Frequent HIV testing among gay, bisexual and other men who have sex with men (GBM) is a strategic priority for HIV prevention in Australia. To overcome barriers to testing in conventional clinical services, Australia recently introduced peer HIV rapid point of care (RPOC) testing services for GBM. This mixed methods evaluation describes client acceptability and HIV prevention benefits of a peer HIV testing model. Most aspects of the service model were overwhelmingly acceptable to clients. Two-thirds of survey participants reported preferring testing with peers rather than doctors or nurses and over half reported learning something new about reducing HIV risk. Focus group findings suggested peer-delivered HIV RPOC testing reduced stigma-related barriers to frequent testing and provided novel opportunities for GBM to openly discuss HIV prevention and sexual practices, enhancing their HIV risk-reduction knowledge. Analysis of survey data suggested knowledge transfer occurred particularly among younger and less gay community-attached GBM.

Everywhere in Japan: an international approach to working with commercial gay businesses in HIV prevention

In the UK and Japan, there is concern regarding rising rates of annual new HIV infections among Men who have Sex with Men (MSM). Whilst in the UK and Europe, gay businesses are increasingly recognized as being important settings through which to deliver HIV prevention and health promotion interventions to target vulnerable populations; in Japan such settings-based approaches are relatively underdeveloped. This article draws on qualitative data from a recently completed study conducted to explore whether it is feasible, acceptable and desirable to build on the recent European Everywhere project for adaptation and implementation in Japan. A series of expert workshops were conducted in Tokyo, Nagoya and Osaka with intersectoral representatives from Japanese and UK non-governmental organizations (NGOs), gay businesses, universities and gay communities (n = 46). Further discussion groups and meetings were held with NGO members and researchers from the Japanese Ministry of Health, Labour and Welfare's Research Group on HIV Prevention Policy, Programme Implementation and Evaluation among MSM (n = 34). The results showed that it is desirable, feasible and acceptable to adapt and implement a Japanese version of Everywhere. Such a practical, policy-relevant, settings-based HIV prevention framework for gay businesses may help to facilitate the necessary scale up of prevention responses among MSM in Japan. Given the high degree of sexual mobility between countries in Asia, there is considerable potential for the Everywhere Project (or its Japanese variant) to be expanded and adapted to other countries within the Asia-Pacific region.

Opt-Out Referral of Men Who Have Sex With Men Newly Diagnosed With HIV to Partner Notification Officers: Results and Yield of Sexual Partners Being Contacted

BACKGROUND

Given its potential for reducing the proportion of people with human immunodeficiency virus (HIV) unaware of their diagnosis, partner notification for HIV has been underutilized. This study aimed to determine if the implementation of opt-out referral of men who have sex with men, newly diagnosed with HIV, to partner notification officers (PNO) increased the proportion of sexual partners notified.

METHODS

In April 2013, all individuals newly diagnosed with HIV at the Melbourne Sexual Health Centre, Australia were referred to Department of Health PNO to facilitate partner notification. The number of sexual partners reported by men and the proportion contacted in the 12 months before (opt-in period) and after (opt-out period) this policy change were determined through review of the clinical PNO records.

RESULTS

Overall, 111 men were diagnosed with HIV during the study period. Compared with men in the opt-in period (n = 51), men in the opt-out period (n = 60) were significantly more likely to accept assistance from the PNO (12 [24%] vs 51 [85%]; P < 0.001). A significantly higher proportion of reported partners were notified with opt-out referral (85/185, 45.9%; 95% confidence interval, 38.6-53.4) compared with opt-in referral (31/252, 12.3%; 95% confidence interval, 8.5-17.0) (P < 0.001).

DISCUSSION

Opt-out referral to PNO was associated with a substantially higher proportion of partners at risk of HIV being contacted.

Declining prevalence of undiagnosed HIV in Melbourne: results from community-based bio-behavioural studies of gay and bisexual men

OBJECTIVE

To measure changes in undiagnosed HIV among gay and bisexual men (GBM) in Melbourne.

METHODS

Undiagnosed HIV was compared between GBM recruited anonymously in 2008 in gay venues only and GBM anonymously or confidentially (results delivery) recruited in 2014 at gay venues and a community festival. Surveys were completed and oral fluid specimens collected for HIV testing; positive tests among GBM reporting being HIV-negative or unknown/untested were classified as undiagnosed. Tests of proportions compared serological prevalence, undiagnosed prevalence and participant characteristics.

RESULTS

HIV prevalence was 9.5% and 7.1% among 639 and 993 GBM recruited in 2008 and 2014, respectively; undiagnosed prevalence declined significantly from 31.1% to 7.1% (p<0.001). Sexual risk and undiagnosed HIV was highest among venue-recruited participants in 2014 (17.6%). Fewer diagnosed GBM participated confidentially in 2014, but this did not meaningfully influence comparative undiagnosed HIV prevalence.

CONCLUSION

We provide the first estimates of changes in undiagnosed HIV in Australia, demonstrating a marked decline in undiagnosed HIV among GBM. Implications for public health: Our findings are consistent with reports of increases in HIV testing among GBM. Given sustained high HIV diagnosis rates, new testing models that encourage high frequency testing are needed to control the local HIV epidemic.

Provision of HIV test results by telephone is both safe and efficient for men who have sex with men

The aim of this study was to assess the impact of delivering HIV test results by telephone on HIV testing and subsequent risk behaviour of men, as well as saving on clinic consultation time. It was conducted at the Melbourne Sexual Health Centre, the main public sexual health clinic servicing Victoria, Australia. In 2013, a policy change was introduced so men could obtain their HIV test result via telephone. We compared the proportion of men testing for HIV and receiving results in the 24 months before (2011-2012) and the 24 months after (2013-2014) the policy change. There was a modest increase in the proportion of men having a HIV test of 3.2% ( p < 0.001) after the policy change. The provision of HIV results by telephone more than halved the number of men re-attending (74.4% vs. 33.1%) which freed up 516 hours of clinic time and had no adverse outcome on subsequent risk behaviour, nor changed the proportion of men who obtained their HIV results ( p = 0.058), or the period of time between testing and obtaining results for HIV-negative ( p = 0.007) and HIV-positive results ( p = 0.198). Telephone notification of HIV test results is a useful option given the potential beneficial effects shown.

Resetting the agenda: the makings of ?A New Era

The New South Wales Government's NSW HIV Strategy 2012-2015: A New Era represented a punctuated shift of policy direction, and was remarkable for its ground-breaking declaration that HIV transmission could be virtually ended by 2020. This significant policy shift occurred after a long period of stability and only incremental change, some of it represented by policy decline as political and public interest in HIV waned. This article uses punctuated equilibrium theory to explore the conditions that allowed for change, and the roles played by new and long-standing actors in the HIV policy subsystem. It explains the importance of challenges to the policy image and the policy venue as key mechanisms that allowed new possibilities, created by advances in the scientific understanding of HIV, to be incorporated rapidly into government policy.

The prevalence and correlates of undiagnosed HIV among Australian gay and bisexual men: results of a national, community-based, bio-behavioural survey

Introduction

Gay and bisexual men (GBM) with undiagnosed HIV are believed to contribute disproportionately to HIV transmission in Australia but national prevalence estimates have been lacking.

Methods

From November 2013 to November 2014, we recruited men at gay venues and events in six Australian states and territories. Of 7291 survey participants, 3071 men also provided an oral fluid sample for testing and decided whether to receive their test results or not. We calculated raw and population-weighted prevalence estimates and identified associations with undiagnosed infection using logistic regression.

Results

Of 3071 participants, 213 men tested HIV-positive (6.9%, 95% confidence interval [CI] 6.0 to 7.8%), of whom 19 (8.9%, 95% CI 5.8 to 13.5%) were previously undiagnosed. After weighting for the size of the gay and bisexual male population in each state or territory, national HIV prevalence was estimated to be 7.2% (95% CI 6.3 to 8.1), of which 9.1% (95% CI 6.0 to 13.6%) were estimated to be undiagnosed. Compared with HIV-negative participants, men with undiagnosed HIV were more likely to report meeting partners at sex venues, using antiretroviral drugs as pre-exposure prophylaxis, condomless anal intercourse with casual partners, using party drugs for sex, injecting drugs and using amyl nitrite, crystal methamphetamine or gamma hydroxybutyrate in the six months prior to the survey.

Discussion

The results indicate that the prevalence of undiagnosed HIV is relatively low among Australian GBM but is higher among men who report riskier sex and drug practices.

Conclusions

The results underline the importance of targeted HIV prevention and frequent testing for men at increased risk of infection.

Temporal trends of time to antiretroviral treatment initiation, interruption and modification: examination of patients diagnosed with advanced HIV in Australia

Introduction

HIV prevention strategies are moving towards reducing plasma HIV RNA viral load in all HIV-positive persons, including those undiagnosed, treatment naïve, on or off antiretroviral therapy. A proxy population for those undiagnosed are patients that present late to care with advanced HIV. The objectives of this analysis are to examine factors associated with patients presenting with advanced HIV, and establish rates of treatment interruption and modification after initiating ART.

Methods

We deterministically linked records from the Australian HIV Observational Database to the Australian National HIV Registry to obtain information related to HIV diagnosis. Logistic regression was used to identify factors associated with advanced HIV diagnosis. We used survival methods to evaluate rates of ART initiation by diagnosis CD4 count strata and by calendar year of HIV diagnosis. Cox models were used to determine hazard of first ART treatment interruption (duration >30 days) and time to first major ART modification.

Results

Factors associated (p<0.05) with increased odds of advanced HIV diagnosis were sex, older age, heterosexual mode of HIV exposure, born overseas and rural–regional care setting. Earlier initiation of ART occurred at higher rates in later periods (2007–2012) in all diagnosis CD4 count groups. We found an 83% (69, 91%) reduction in the hazard of first treatment interruption comparing 2007–2012 versus 1996–2001 (p<0.001), and no difference in ART modification for patients diagnosed with advanced HIV.

Conclusions

Recent HIV diagnoses are initiating therapy earlier in all diagnosis CD4 cell count groups, potentially lowering community viral load compared to earlier time periods. We found a marked reduction in the hazard of first treatment interruption, and found no difference in rates of major modification to ART by HIV presentation status in recent periods.

Drug Use, Sexual Risk, and Syndemic Production Among Men Who Have Sex With Men Who Engage in Group Sexual Encounters

OBJECTIVES

We surveyed men who have sex with men (MSM) to determine whether sexual risk behaviors, recent drug use, and other psychosocial problems differed between men who engaged in one-on-one and group sexual encounters.

METHODS

We conducted an Internet-based cross-sectional survey of 7158 MSM aged 18 years or older in the United States recruited from a gay-oriented sexual networking Web site in 2008. Among MSM who engaged in group sexual encounters, we compared their past-60-day sexual behaviors in one-on-one encounters and group sexual encounters. We also compared risk profiles and syndemic production between men who did and did not participate in group sex.

RESULTS

Men reporting a group-sex encounter had significantly higher polydrug use and sexual risk than did the men not reporting group sex in the past 60 days. The odds of engaging in group sex with 4 or more sexual partners significantly increased with the number of psychosocial problems, supporting evidence of syndemic production.

CONCLUSIONS

We identified a particularly high-risk subgroup in the MSM population with considerable psychosocial problems that may be reached online. Research is needed on how to engage these high-risk men in combination prevention interventions.

Undiagnosed HIV infection in a population of MSM from six European cities: results from the Sialon project

OBJECTIVES

The purpose of this article is to assess the distribution of undiagnosed HIV infection in men who have sex with men (MSM) in Southern and Eastern European countries, to describe the differences in epidemiology and behaviour between undiagnosed, diagnosed HIV-positive and HIV-negative MSM and to identify factors associated with undiagnosed HIV infection in the study population.

METHODS

A multi-centre biological and behavioural cross-sectional study was conducted in 2008. Time-location sampling was used to recruit men attending different venues. A self-administered questionnaire was completed and oral fluid samples were collected to estimate HIV prevalence.

RESULTS

HIV prevalence was 17% in Barcelona, 12% in Verona, 6% in Bratislava, 5% in Ljubljana, 5% in Bucharest and 3% in Prague while undiagnosed HIV infection was 47, 62, 67, 83, 85 and 57%, respectively. Diagnosed HIV-positive men reported more casual partners than HIV-negative MSM (mean: 19 and 9, respectively) (P < 0.001), and they were more likely to self-reported condyloma in the last year than undiagnosed HIV-positive and HIV-negative men (15, 1 and 3%, respectively) (P < 0.001). Factors associated with undiagnosed HIV infection included attending sex-focused venues (OR = 2.49), reporting syphilis in the previous 12 months (OR = 2.56), using poppers at last sexual intercourse (OR = 3.36) and having had an HIV test in the previous year (OR = 2.00).

CONCLUSIONS

Many HIV infections remain undiagnosed, and there is evidence of the persistence of frequent risk behaviours and sexually transmitted infections (STI) despite knowledge of HIV-positive status, emphasising the need for a multidimensional approach to HIV/STI prevention. Access to HIV testing should be considered a priority in prevention programs targeted at MSM, especially in Eastern Europe.

Increases in newly acquired HIV infections in Victoria, Australia: epidemiological evidence of successful prevention?

BACKGROUND

Rates of newly acquired HIV notifications provide useful data for monitoring transmission trends.

METHODS

We describe 10-year (2001-10) trends in newly acquired HIV notifications in Victoria, Australia. We also examine recent trends in HIV testing and incidence and risk behaviours among gay and other men who have sex with men (MSM) attending four high MSM caseload clinics.

RESULTS

Between 2001 and 2010 there was a significant increasing linear trend in newly acquired HIV that was driven primarily by increases between 2009-2010. MSM accounted for 85% of newly acquired HIV notifications. Between 2007-10, the total number of HIV tests per year at the high caseload clinics increased 41% among MSM and HIV incidence declined by 52%; reported risk behaviours remained relatively stable among these MSM.

CONCLUSION

More newly acquired HIV notifications may reflect recent increased testing among MSM; continued scrutiny of surveillance data will assess the sustained effectiveness of testing as prevention, health promotion and the contribution of risk and testing behaviours to HIV surveillance outcomes.

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.

Australian sexually transmissible infection and HIV testing guidelines for asymptomatic men who have sex with men 2014: a review of the evidence

Men who have sex with men (MSM) in Australia and overseas are disproportionately affected by sexually transmissible infections (STIs), including HIV. Many STIs are asymptomatic, so regular testing and management of asymptomatic MSM remains an important component of effective control. We reviewed articles from January 2009–May 2013 to inform the 2014 update of the 2010 Australian testing guidelines for asymptomatic MSM. Key changes include: a recommendation for pharyngeal chlamydia (Chlamydia trachomatis) testing, use of nucleic acid amplification tests alone for gonorrhoea (Neisseria gonorrhoeae) testing (without gonococcal culture), more frequent (up to four times a year) gonorrhoea and chlamydia testing in sexually active HIV-positive MSM, time required since last void for chlamydia first-void urine collection specified at 20 min, urethral meatal swab as an alternative to first-void urine for urethral chlamydia testing, and the use of electronic reminders to increase STI and HIV retesting rates among MSM.

Being unaware of being HIV-infected is associated with alcohol use disorders and high-risk sexual behaviors among men who have sex with men in Peru

This study compared the correlates of HIV risk among men who have sex with men (MSM) with newly diagnosed versus previously known HIV infection among 5,148 MSM recruited using modified snowball sampling in 5 Peruvian cities. Participants, if age ≥18 years and reporting sex with a male in the previous 12 months, underwent standardized computer-assisted risk assessments and HIV and syphilis testing. Overall, 420 (8.2 %) participants tested HIV seropositive, most of whom (89.8 %) were unaware of their HIV status. Compared to those who knew themselves to be HIV-infected, multivariate logistic regression demonstrated that unprotected anal intercourse at last encounter [AOR = 2.84 (95 % CI 1.09-7.40)] and having an alcohol use disorder (AUD) [AOR = 2.14 (95 % CI 1.01-5.54)] were independently associated with a newly diagnosed HIV infection. Being unaware of being HIV-infected was associated with high-risk sexual behaviors and AUDs, both of which are amenable to behavioral and medication-assisted therapy interventions.

Provision of rapid HIV tests within a health service and frequency of HIV testing among men who have sex with men: randomised controlled trial

OBJECTIVE

To determine if the provision of rapid HIV testing to men who have sex with men attending a health service would increase their frequency of HIV testing over time.

DESIGN

Non-blinded randomised controlled trial.

SETTING

Public sexual health service in Australia.

PARTICIPANTS

Men who reported having a male sexual partner within the previous year and an HIV test within the previous two years. Of 400 men entered, 370 (92.5%) completed the study.

INTERVENTIONS

Men attending the service between September 2010 and March 2011 were randomised 1:1 to either ongoing access to rapid HIV testing obtained with finger prick or to conventional HIV serology with venepuncture, over 18 months.

MAIN OUTCOME MEASURE

The incidence of all HIV testing after enrolment, including testing outside the study clinic, analysed by intention to treat.

RESULTS

Of 200 men randomised to the rapid testing arm, 196 were followed for 288 person years. Of 200 men randomised to the conventional testing arm, 194 were followed for 278 person years. Median time since the last HIV test was six months for both arms. Men in the rapid test arm had 469 tests (mean 1.63 tests a year), and men in the conventional test arm had 396 tests (mean 1.42 tests a year); incidence rate ratio 1.15, 95% confidence interval 0.96 to 1.38; P=0.12. In a post hoc analysis, rates of initial HIV testing during follow-up were 1.32 and 1.01 tests a year, respectively (1.32, 1.05 to 1.65; P=0.02).

CONCLUSIONS

Provision of access to rapid HIV testing in a health service did not result in a sustained increase over time in HIV testing by men who have sex with men; however, the rate of initial HIV testing did increase by a third. Further research is required to determine how to achieve sustained increases in the frequency of HIV testing by populations at risk.

TRIAL REGISTRATION

ACTR No 12610000430033.

Which gay men would increase their frequency of HIV testing with home self-testing?

Many Australian gay men do not get tested for HIV at the recommended frequency. Barriers to HIV testing may be reduced by the availability of home HIV self-testing (HHST). An online cross-sectional questionnaire was conducted with 2,306 Australian gay men during 2009. Multivariate logistic regression identified factors associated with being likely to increase testing frequency if HHST was available, among previously-tested and never-tested men. Among 2,018 non-HIV-positive men, 83.9% had been tested. Two-thirds indicated they would test more often if HHST was available irrespective of previous testing history. In multivariate analysis, independent predictors of increased testing frequency with HHST included preferences for more convenient testing, not having to see a doctor when testing and wanting immediate results among all men, as well as not being from an Anglo-Australian background and recent unprotected anal sex with casual partners among previously-tested men only. The majority of gay men report that being able to test themselves at home would increase their frequency of HIV testing.

HIV prevalence and sexual risk behaviors associated with awareness of HIV status among men who have sex with men in Paris, France

A cross-sectional survey, using self-sampled finger-prick blood on blotting paper and anonymous behavioral self-administrated questionnaires was conducted in Paris in 2009 among MSM attending gay venues. Paired biological results and questionnaires were available for 886 participants. HIV seroprevalence was 17.7 % (95 % CI: 15.3-20.4). Four groups were identified according to their knowledge of their HIV biological status. Among the 157 found to be seropositive, 31 (19.7 %) were unaware of their status and reported high levels of sexual risk behaviors and frequent HIV testing in the previous 12 months. Among the 729 MSM diagnosed HIV-negative, 183 were no longer sure whether they were still HIV-negative, or had never been tested despite the fact that they engaged in at-risk sexual behaviors. This study provides the first estimate of HIV seroprevalence among MSM in Paris and underlines the specific need for combined prevention of HIV infection in this MSM population.

Australian prescribers' perspectives on ART initiation in the era of "treatment as prevention"

This study explores Australian prescribers' attitudes towards Treatment as Prevention (TasP) and their practices around initiating combination antiretroviral treatment (cART) for HIV. A brief online survey was conducted nationally amongst antiretroviral treatment (ART) prescribers in Australia. The sample broadly represented ART prescribers in Australia (N = 108), with 40.7% general practitioners (GPs), 25.9% sexual health clinic-based physicians and 21.3% hospital-based infectious diseases physicians. About 60% of respondents had been treating HIV-positive patients for more than 10 years. Respondents estimated that about 70-80% of all their HIV-positive patients were receiving ART. Over half of the prescribers agreed very strongly that their primary concern in recommending cART initiation was clinical benefit to individual patients rather than any population benefit. A majority of the prescribers (68.5%) strongly endorsed cART initiation before CD4+ T-cell count drops below 350 cells/mm(3), and a further 22.2% strongly endorsed cART initiation before CD4+ T-cell count drops below 500 cells/mm(3). Regarding the optimal timing of cART initiation, this study shows that prescribers in Australia in 2012 focus primarily on the benefits for their individual patients. Prescribers may need more convincing evidence of individual health benefits or increased knowledge about the population health benefits for a TasP approach to be effective in Australia.

HIV epidemic in Asia: optimizing and expanding vaccine development

The recent evidence in Thailand for protection from acquisition of HIV through vaccination in a mostly heterosexual population has generated considerable hope. Building upon these results and the analysis of the correlates of risk remains among the highest priorities. Improved vaccine concepts including heterologous prime-boost regimens, improved proteins with potent adjuvants and new vectors expressing mosaic antigens may soon enter clinical development to assess vaccine efficacy in men who have sex with men. Identifying heterosexual populations with sufficient HIV incidence for the conduct of efficacy trials represents perhaps the main challenge in Asia. Fostering translational research efforts in Asian countries may benefit from the development of master strategic plans and program management processes.

Biomarker-based HIV incidence in a community sample of men who have sex with men in Paris, France

BACKGROUND

Population-based estimates of HIV incidence in France have revealed that men who have sex with men (MSM) are the most affected population and contribute to nearly half of new infections each year. We sought to estimate HIV incidence among sexually active MSM in Paris gay community social venues.

METHODOLOGY/ PRINCIPAL FINDINGS

A cross-sectional survey was conducted in 2009 in a sample of commercial venues such as bars, saunas and backrooms. We collected a behavioural questionnaire and blood sample. Specimens were tested for HIV infection and positive specimens then tested for recent infection by the enzyme immunoassay for recent HIV-1 infection (EIA-RI). We assessed the presence of antiretroviral therapy among infected individuals to rule out treated patients in the algorithm that determined recent infection. Biomarker-based cross-sectional incidence estimates were calculated. We enrolled 886 MSM participants among which 157 (18%) tested HIV positive. In positive individuals who knew they were infected, 75% of EIA-RI positive results were due to ART. Of 157 HIV positive specimens, 15 were deemed to be recently infected. The overall HIV incidence was estimated at 3.8% person-years (py) [95%CI: 1.5-6.2]. Although differences were not significant, incidence was estimated to be 3.5% py [0.1-6.1] in men having had a negative HIV test in previous year and 4.8% py [0.1-10.6] in men having had their last HIV test more than one year before the survey, or never tested. Incidence was estimated at 4.1% py [0-8.3] in men under 35 years and 2.5% py [0-5.4] in older men.

CONCLUSIONS/ SIGNIFICANCE

This is the first community-based survey to estimate HIV incidence among MSM in France. It includes ART detection and reveals a high level of HIV transmission in sexually active individuals, despite a high uptake of HIV testing. These data call for effective prevention programs targeting MSM engaged in high-risk behaviours.

Actual and undiagnosed HIV prevalence in a community sample of men who have sex with men in Auckland, New Zealand

Background

The prevalence of HIV infection and how this varies between subgroups is a fundamental indicator of epidemic control. While there has been a rise in the number of HIV diagnoses among men who have sex with men (MSM) in New Zealand over the last decade, the actual prevalence of HIV and the proportion undiagnosed is not known. We measured these outcomes in a community sample of MSM in Auckland, New Zealand.

Methods

The study was embedded in an established behavioural surveillance programme. MSM attending a gay community fair day, gay bars and sex-on-site venues during 1 week in February 2011 who agreed to complete a questionnaire were invited to provide an anonymous oral fluid specimen for analysis of HIV antibodies. From the 1304 eligible respondents (acceptance rate 48.5%), 1049 provided a matched specimen (provision rate 80.4%).

Results

HIV prevalence was 6.5% (95% CI: 5.1-8.1). After adjusting for age, ethnicity and recruitment site, HIV positivity was significantly elevated among respondents who were aged 30-44 or 45 and over, were resident outside New Zealand, had 6-20 or more than 20 recent sexual partners, had engaged in unprotected anal intercourse with a casual partner, had had sex with a man met online, or had injected drugs in the 6 months prior to survey. One fifth (20.9%) of HIV infected men were undiagnosed; 1.3% of the total sample. Although HIV prevalence did not differ by ethnicity, HIV infected non-European respondents were more likely to be undiagnosed. Most of the small number of undiagnosed respondents had tested for HIV previously, and the majority believed themselves to be either "definitely" or "probably" uninfected. There was evidence of continuing risk practices among some of those with known HIV infection.

Conclusions

This is the first estimate of actual and undiagnosed HIV infection among a community sample of gay men in New Zealand. While relatively low compared to other countries with mature epidemics, HIV prevalence was elevated in subgroups of MSM based on behaviour, and diagnosis rates varied by ethnicity. Prevention should focus on raising condom use and earlier diagnosis among those most at risk, and encouraging safe behaviour after diagnosis.