A Cross-Sectional Assessment of HIV Self-Testing Preferences and Uptake Among Key Populations in Phnom Penh, Cambodia.

BACKGROUND: HIV self-testing (HIVST) is recommended by the World Health Organization, but implementation remains limited. This cross-sectional study evaluated HIVST uptake among female entertainment workers (EWs), men who have sex with men (MSM), and transgender women in Phnom Penh, Cambodia, to inform national implementation. METHODS: Between December 2018 and September 2019, individuals reached through community outreach or via online advertising were offered HIVST or referrals to facility-based testing. Participants opting for HIVST could choose between test kits employing oral-fluid or finger-prick-based sample collection; and between an "assisted" option in which outreach staff offered instructions and assistance and an "unassisted" option in which participants received a kit with instructions for use. A structured questionnaire was administered to facilitate descriptive statistics and tests for associations between participant characteristics and HIV testing preferences and outcomes. RESULTS: Among 1,241 eligible individuals; 1,210 (97.5%) provided responses for analysis. Of these, 1,203 (99.4%) were recruited through outreach; 7 (0.6%) through online advertising. Among those recruited by outreach, 1,186 (98.6%) opted for assisted HIVST, and 1,065 (88.5%) opted for oral-fluid versus finger-prick testing. All individuals recruited through online advertisements opted for unassisted oral-fluid testing. Among all participants, 455 (37.6%) were MSM, 325 (26.9%) were transgender women, 430 (35.5%) were female EWs, and overall, 71.7% reported never previously testing for HIV. A total of 84 participants (6.9%) received reactive screening results and 81 (97.5%) were linked to treatment. CONCLUSION: Uptake of HIVST was high, and most participants preferred oral-fluid over finger-prick-based testing. Many individuals (72%) who had never previously accessed HIV testing services participated in HIVST, with high rates of reactivity.

How Home Delivery of Antiretroviral Drugs Ensured Uninterrupted HIV Treatment During COVID-19: Experiences From Indonesia, Laos, Nepal, and Nigeria.

INTRODUCTION: Faced with the coronavirus disease (COVID-19) pandemic, governments worldwide instituted lockdowns to curtail virus spread. Health facility closures and travel restrictions disrupted access to antiretroviral (ARV) therapy for people living with HIV. This report describes how HIV programs in Indonesia, Laos, Nepal, and Nigeria supported treatment continuation by introducing home delivery of ARVs. METHODS: Staff supporting the programs provided accounts of when and how decisions were taken to support ARV home delivery. They captured programmatic information about home delivery implementation using an intervention documentation tool. The 4 country experiences revealed lessons learned about factors favoring successful expansion of ARV home delivery. RESULTS: Three of the countries relied on existing networks of community health workers for ARV delivery; the fourth country, Indonesia, relied on a private sector courier service. Across the 4 countries, between 19% and 51% of eligible clients were served by home delivery. The experiences showed that ARV home delivery is feasible and acceptable to health service providers, clients, and other stakeholders. Essential to success was rapid mobilization of stakeholders who led the design of the home delivery mechanisms and provided leadership support of the service innovations. Timely service adaptation was made possible by pre-existing differentiated models of care supportive of community-based ARV provision by outreach workers. Home delivery models prioritized protection of client confidentiality and prevention measures for COVID-19. Sustainability of the innovation depends on reinforcement of the commodity management infrastructure and investment in financing mechanisms. CONCLUSION: Home delivery of ARVs is a feasible client-centered approach to be included among the options for decentralized drug distribution. It serves as a measure for expanding access to care both when access to health services is disrupted and under routine circumstances.

Uptake of oral fluid-based HIV self-testing among men who have sex with men and transgender women in Thailand.

BACKGROUND: Suboptimal uptake of HIV testing remains a primary bottleneck to HIV prevention and treatment for men who have sex with men (MSM) and transgender women (TGW) in Thailand. The World Health Organization has recommended HIV self-testing (HIVST) as an additional strategic HIV service. However, HIVST has not been fully endorsed and implemented in many countries in Southeast Asia. The aim of this study was to assess the uptake of oral fluid-based HIVST in MSM and TGW populations in Thailand. METHODS: During 2017 and 2018, we conducted a cross-sectional study using convenience sampling to enroll 2,524 participants from three major urban areas. Participants were recruited during outreach and online activities and were offered unassisted or assisted HIVST, or referral to HIV testing services. A descriptive analysis was performed for summarizing data. RESULTS: A total of 2,502 participants (1,422 MSM and 1,082 TGW) were included in the analysis with about one-third (36.1%) of them being first-time testers. Among all participants enrolled in the study, a total of 2,486 participants (99.3%) selected HIVST versus referral to HIV testing services. Of those who selected HIVST, 2,095 (84.3%) opted for assisted HIVST while the rest opted for unassisted HIVST: 1,148 of 1,411 MSM (81.4%) and 947 of 1,075 TGW (88.1%) selected assisted HIVST. While no serious adverse events were reported during the study, we found that among 179 participants who needed a confirmatory test and were referred to HIV testing services, 108 (60.3.4%) accessed these later services. CONCLUSIONS: This study demonstrated a high uptake of oral fluid-based HIVST among MSM and TGW populations in Thailand and that HIVST could be scaled up through the national epidemic control program. However, a better understanding of HIV testing-seeking behavior and innovative follow-up solutions are needed to improve and monitor linkages to services for people who undertake HIVST.

Fast-tracking the end of HIV in the Asia Pacific region: domestic funding of key population-led and civil society organisations.

Ending AIDS in Asia Pacific by 2030 requires countries to give higher priority to financing community-based and key population-led service delivery. Mechanisms must be developed for civil society organisations to deliver health and HIV/AIDS services for key populations, especially men who have sex with men, and transgender people, within national health policy frameworks. Current investments in the HIV response in the Asia Pacific region reflect inadequate HIV financing for key populations, particularly for civil society and key population-led organisations that are optimally positioned to advance HIV epidemic control. These organisations are typically supported by international agencies whose investments are starting to decline. Domestic investments in key population-led organisations are often hampered by punitive laws against their communities, pervasive stigma and discrimination by policy makers, an insufficient understanding of the most effective HIV epidemic control strategies, and financing systems that limit access to funding for these organisations from the national budget. Countries in the Asia Pacific region are evolving their community-based and key population policies and programmes. We need accessible, disaggregated financial data and in-depth case studies that showcase effective key population-led programmes, to enable countries to learn from each other.

Getting to the First 90: Incentivized Peer Mobilizers Promote HIV Testing Services to Men Who Have Sex With Men Using Social Media in Mumbai, India.

Recent studies of Indian men who have sex with men (MSM) have shown widespread use of social media for seeking sex partners. We piloted a peer mobilization approach to explore the feasibility of engaging previously unreached MSM online to link them to HIV testing services (HTS). MSM were encouraged to seek HTS through messages posted on a popular dating website. Those who visited the designated HTS site and tested for HIV were recruited as peer mobilizers and given coupons with unique identifying codes to distribute to other men in their virtual networks. If a network member presented at the site with a coupon and tested for HIV, the peer mobilizer was given a small monetary incentive. Network members presenting at the testing site were also recruited as peer mobilizers and given coupons. In a 6-month period, 247 MSM were recruited and tested for HIV and syphilis, of whom 244 (99%) were first-time testers. Two-thirds were less than 25 years old and about half reported inconsistent or no condom use during the last 10 anal sex acts. Eight individuals (3.2%) tested positive for HIV, and 22 (8.9%) had a high titer for syphilis; all were referred to tertiary hospitals for treatment. Our approach was modestly successful in reaching and providing HTS to previously unreached MSM, but challenges included lower-than-expected recruitment, individuals not returning for posttest counseling, and loss to follow-up of individuals with HIV. The next phase of peer mobilization will aim to scale up these services through government-supported targeted interventions for this subpopulation of primarily young, unreached MSM at high risk. The challenges will be addressed by targeting more dating sites, increasing access to testing using rapid HIV tests at several community-based facilities, and offering peer navigation support for people living with HIV.

Characteristics and HIV epidemiologic profiles of men who have sex with men and transgender women in key population-led test and treat cohorts in Thailand.

Men who have sex with men (MSM) and Transgender Women (TGW) in Thailand contribute to more than half of all new HIV infections annually. This cross-sectional study describes epidemiologic profiles of these key populations (KP) in Key Population-led Test and Treat study. Baseline data were collected using self-administered questionnaires and HIV/STI testing from MSM and TGW aged ≥18 years enrolled in a cohort study in six community sites in Thailand between October 2015 and February 2016. Factors associated with HIV prevalence were determined by logistic regression. TGW in the cohorts had lower education and income levels than MSM. TGW also engaged in sex work more, though similar proportions between MSM and TGW reported to have multiple sexual partners and STI diagnosis at baseline. HIV prevalence was 15.0% for MSM and 8.8% for TGW in the cohorts. HIV prevalence among TGW was more associated with sociodemographic characteristics, whereas factors related to behavioral risks were determined to be associated with HIV prevalence among MSM. TGW and MSM in the cohorts also had high prevalence of STI. Key Population-driven HIV services are able to capture harder-to-reach key populations who are at heightened risk for HIV.

Testing the limits of case finding for HIV prevention.

HIV testing technologies have been available for two decades, but concerns about stigma and discrimination have historically tempered the application of case finding-a cornerstone of public-health practice-to combat the HIV/AIDS pandemic. The recent expansion of access to HIV treatment has resulted in a shift of emphasis from pairing testing with rigorous risk-reduction prevention counselling, to applying testing to find infected individuals, address their care and treatment needs, and prevent them from infecting others. However, the efficacy of case finding for infectious disease prevention is contingent on two basic principles: the ability to identify infected individuals before further transmission occurs, and the availability of effective strategies to prevent such transmission from taking place. Although there is evidence that specific approaches to HIV counselling and testing can support behaviour change, both high infectivity during early HIV infection and specific sexual network structures could combine to substantially limit our ability to identify cases before ongoing transmission occurs. Facilitating the broader adoption of prevention behaviours therefore remains essential to prevent the continued spread of HIV.

Importance of Risk Perception: Predictors of PrEP Acceptance Among Thai MSM and TG Women at a Community-Based Health Service.

BACKGROUND: HIV prevalence among Thai men who have sex with men (MSM) and transgender women (TG) are 9.15% and 11.8%, respectively, compared with 1.1% in the general population. To better understand early adopters of pre-exposure prophylaxis (PrEP) in Thailand, we analyzed biobehavioral and sociodemographic characteristics of PrEP-eligible MSM and TG. SETTING: Four Thai urban community clinics between October 2015 and February 2016. METHODS: Sociodemographics, HIV risk characteristics, and PrEP knowledge and attitudes were analyzed in association with PrEP initiation among eligible Thai MSM and TG. Adjusted analysis explored factors associated with PrEP acceptance. We then analyzed HIV risk perception, which was strongly associated with PrEP initiation. RESULTS: Of 297 participants, 55% accepted PrEP (48% of MSM, 54% of TG). Perceived HIV risk levels were associated with PrEP acceptance [odds ratio (OR): 4.3; 95% confidence interval (95% CI): 1.5 to 12.2. OR: 6.3; 95% CI: 2.1 to 19.0. OR: 14.7; 95% CI: 3.9 to 55.1; for minimal, moderate, and high perceived risks, respectively]. HIV risk perception was associated with previous HIV testing (OR: 2.2; 95% CI: 1.4 to 3.5); inconsistent condom use (OR: 1.8; 95% CI: 1.1 to 2.9); amphetamine use in the past 6 months (OR: 3.1; 95% CI: 1.1 to 8.6); and uncertainty in the sexually transmitted infection history (OR: 2.3; 95% CI: 1.4 to 3.7). Approximately half of those who reported either inconsistent condom use (46%), multiple partners (50%), group sex (48%), or had baseline bacterial sexually transmitted infection (48%) perceived themselves as having no or mild HIV risk. CONCLUSIONS: HIV risk perception plays an important role in PrEP acceptance. Perception does not consistently reflect actual risk. It is therefore critical to assess a client's risk perception and provide education about HIV risk factors that will improve the accuracy of perceived HIV risk.

Nampt/PBEF/visfatin serum levels: a new biomarker for retinal blood vessel occlusions.

The main objective of the study was to quantify serum levels of nicotinamide phosphoribosyltransferase (Nampt/pre-B-Cell colony-enhancing factor 1/visfatin) in subjects with a history of retinal vascular occlusions (RVOs), disease conditions characterized by pronounced ischemia, and metabolic energy deficits. A case-control study of 18 subjects with a history of RVO as well as six healthy volunteers is presented. Serum Nampt levels were quantified using a commercially available enzyme-linked immunosorbent assay kit. Serum Nampt levels were 79% lower in patients with a history of RVO compared with that in healthy volunteers (P<0.05). There was no statistically significant difference among the types of RVOs, specifically branch retinal vein occlusions (n=7), central retinal vein occlusions (n=5), hemiretinal vein occlusions (n=3), and central retinal artery occlusions (n=3; P=0.69). Further studies are needed to establish the temporal kinetics of Nampt expression and to determine whether Nampt may represent a novel biomarker to identify at-risk populations, or whether it is a druggable target with the potential to ameliorate the long-term complications associated with the condition, ie, macular edema, macular ischemia, neovascularization, and permanent loss of vision.

'Getting to zero' in Asia and the Pacific through more strategic use of antiretrovirals for HIV prevention.

Encouraged by experimental trials demonstrating the efficacy of antiretrovirals (ARVs) in preventing HIV infection, countries across the Asia-Pacific region have committed to the achievement of ambitious targets tantamount to ending AIDS. The available data suggest that some countries still can make progress through targeted condom promotion and the expansion of harm-reduction interventions, but that none may realise its vision of 'zero new HIV infections' without more strategic use of ARVs as part of a combination of HIV prevention efforts targeting key populations. Low rates of HIV testing among men who have sex with men, people who inject drugs, sex workers and other key populations evidence low treatment coverage where treatment could have the greatest impact on curbing local epidemics. Studies have demonstrated the promise of adding ARV treatment and pre-exposure prophylaxis to the existing HIV prevention toolkit, but achieving population-level impact will require service-delivery approaches that overcome traditional prevention, care and treatment program distinctions. Priorities include: (1) innovative strategies to reach, test, treat and retain in services the individuals most likely to acquire or transmit HIV; (2) task shifting and enhanced partnerships between the public sector and civil society; (3) improved 'cascade' data systems to assess and promote service uptake and retention; and (4) policy and financing reform to enhance HIV testing and treatment access among key populations.

Spectral Domain Optical Coherence Tomography Findings of Retinal Macroaneurysm.

A 47-year-old healthy male presented to the ophthalmology clinic with complaint of dry eyes. Examination revealed visual acuity 20/20 in both eyes (OU). Anterior segment examination was normal. Fundus examination and fluorescein angiogram findings were consistent with a non-ruptured macroaneurysm. Spectral domain (SD) optical coherence tomography (OCT) (Ophthalmic Technologies, Ontario, Canada) demonstrated a large 215 mu lumen with inferior hyperreflectivity at the area of hemorrhage. There was focal thickening of the retina to encompass the macroaneurysm but no associated retinal edema. The higher resolution afforded by SD OCT may allow more accurate measurement of the size of the aneurysm, making it possible to evaluate prognostically relevant characteristics of the aneurysm such as hemorrhage in the vessel wall or thrombus in the lumen. This may also allow us to possibly intervene earlier in high-risk cases. SD OCT may be of value in management of retinal macroaneurysm.