Awareness and Perceived Accuracy of Undetectable = Untransmittable: A Cross-Sectional Analysis With Implications for Treatment as Prevention Among Young Men Who Have Sex With Men

Awareness of U = U among Sexual and Gender Minorities in Brazil, Mexico, and Peru: Differences According to Self-reported HIV Status

The slogan Undetectable equals Untransmittable (U = U) communicates that people living with HIV (PLHIV) who are on antiretroviral therapy (ART) will not transmit HIV to their sexual partners. We describe awareness of U = U among sexual and gender minorities (SGM) living in Brazil, Mexico, and Peru by self-reported HIV status (PLHIV, negative, unknown) during 2021 using an online survey. We estimated two models using Poisson regression for each population group: Model A including socio-demographic factors (country, gender, age, race, education, and income), and then Model B including taking ART (for PLHIV) or risk behavior, ever-taking PrEP, and HIV risk perception (for HIV-negative or of unknown HIV status). A total of 21,590 respondents were included (Brazil: 61%, Mexico: 30%, Peru: 9%). Among HIV-negative (74%) and unknown status (12%), 13% ever used PrEP. Among PLHIV (13%), 93% reported current use of ART. Awareness of U = U was 89% in both Brazil and Mexico, which was higher than in Peru 64%. Awareness of U = U was higher among PLHIV (96%) than HIV-negative (88%) and HIV-unknown (70%). In multivariate models, PLHIV with lower education were less aware of U = U, while those taking ART were more aware. Among HIV-negative, non-cisgender, lower income, and those with lower education had lower awareness of U = U, while individuals ever using PrEP had higher awareness. In conclusion, awareness of U = U varied by HIV status, socio-demographic characteristics, and HIV risk behavior. The concept of U = U should be disseminated through educational strategies and include a focus on SGM to combat HIV stigma.

The Potential Role of Undetectable = Untransmittable (U = U) in Reducing HIV Stigma among Sexual Minority Men in the US

The Undetectable = Untransmittable (U = U) message and its scientific underpinnings have been widely suggested to reduce HIV stigma. However, misunderstanding and skepticism about U = U may prevent this destigmatizing potential from being fully realized. This cross-sectional study examined associations between U = U belief (belief that someone with a sustained undetectable viral load has zero risk of sexually transmitting HIV) and HIV stigma among US sexual minority men. Differences by serostatus and effects of brief informational messaging were also explored. The survey was completed online by 106 men living with HIV and 351 HIV-negative/status-unknown men (2019-2020). Participants were 18-83 years old (M[SD] = 41[13.0]). Most were non-Hispanic White (70.0%) and gay (82.9%). Although nearly all participants (95.6%) were aware of U = U, only 41.1% believed U = U. A greater percentage of participants living with HIV (66.0%) believed U = U compared with HIV-negative/status-unknown participants (33.6%). Among participants living with HIV, U = U belief was not significantly associated with perceived, internalized, or experienced HIV stigma or with viral load prejudice (prejudice against people who have a detectable HIV viral load). Among HIV-negative/status-unknown participants, U = U belief was associated with less frequently enacted HIV discrimination, more positive feelings toward people with an undetectable viral load, and lower personal endorsement of stigmatizing beliefs. Brief informational messaging about U = U did not affect most stigma dimensions and did not favorably affect any. Interventions are needed to correct commonly held, outdated misconceptions about HIV transmission risk. Such initiatives must not only engage people living with HIV but also engage HIV-negative/status-unknown people to maximize the destigmatizing potential of U = U.

Attitudes Toward and Beliefs in the Effectiveness of Biomedical HIV Prevention Strategies Among Emerging and Young Adult Sexual Minority Men

BACKGROUND

Pre-exposure prophylaxis (PrEP) and HIV treatment as prevention, which underlies the Undetectable = Untransmittable (U = U) campaign, are two effective biomedical approaches for HIV prevention among sexual minority men (SMM). Attitudes toward PrEP and U = U may differ between SMM emerging adults (EA: 18-24 years old) and young adults (YA: 25-29 years old) to drive differences in sexual behavior. However, to date, few studies assessed the degree to which YAs and EAs differ in their beliefs in the effectiveness of PrEP and U = U.

METHOD

A national sample of 80 SMM in the USA (Mage = 25.1 years; 53.7% racial/ethnic minority; 38.8% EA; 61.3% YA) participated in a 6-month mHealth intervention for PrEP adherence. Non-parametric tests assessed differences in sexual behaviors and attitudes toward the effectiveness of PrEP and U = U between EAs and YAs using baseline data.

RESULTS

Compared to EAs, higher proportions of YAs trusted PrEP's effectiveness and considered condom use unnecessary after taking PrEP. More YAs than EAs were willing to engage in sexual behaviors that they felt too risky before learning about U = U and were more comfortable having condomless sex with HIV-positive partners. Conversely, a greater proportion of EAs than YAs preferred to use condoms even when their partners are on anti-HIV medications.

CONCLUSION

Overall, YAs trusted the effectiveness of U = U and PrEP more than EAs, underscoring developmental differences in SMM's perspectives on biomedical HIV prevention tools. Our findings underscore the importance of tailoring messages on biomedical HIV prevention options differently for EAs and YAs to optimize uptake.

Attitudes and Beliefs About HIV Treatment as Prevention Among People Who are Not Engaged in HIV Care, 2018-2019

Treatment as prevention (TasP) is an effective HIV prevention strategy. Our objectives were to explore TasP attitudes and beliefs among people with HIV (PWH) who are not engaged in care and to examine attitudes and beliefs by selected characteristics. We sampled PWH who had participated in the Medical Monitoring Project (MMP), a structured interview survey, from June 2018-May 2019 to participate in 60-minute semi-structured telephone interviews. We obtained sociodemographic and behavioral quantitative data from the MMP structured interview. We used applied thematic analysis to analyze the qualitative data and integrated the qualitative and quantitative data during analysis. Negative attitudes and beliefs, especially skepticism and mistrust, about TasP were pervasive. Only one participant who identified as female, was not sexually active, and had not heard of TasP held positive attitudes and beliefs about TasP. TasP messages should use clear and unambiguous language, address mistrust, and reach people who are not engaged in medical care.

Barriers to Treatment as Prevention Adoption Among Sexual and Gender Minority Individuals Who Have Sex with Men in the United States

The discovery that people with an undetectable HIV viral load are unable to transmit the virus to sex partners (U = U) has ushered in a new era in HIV care. As a result of this discovery, treatment as prevention (TasP) has become a powerful tool toward ending the epidemic. However, despite its sound scientific basis, many communities affected by HIV face barriers toward adopting TasP as a complete HIV prevention strategy. In addition, most research to date has only focused on TasP in the context of committed monogamous partnerships. To identify barriers to TasP adoption among some of those most affected by HIV, we conducted in-depth qualitative interviews with 62 sexual and gender minority individuals of varying serostatuses. Participants were identified from the results of an online survey, where those who indicated at least some awareness of TasP were invited to partake in a follow-up interview. Interviews were thematically coded to identify emergent themes relating to TasP adoption. Seven primary barriers emerged from data analysis pertaining to TasP science, internalized beliefs about HIV safety, and interactional dynamics between partners: (1) unfamiliarity with TasP science, (2) perceived limitations of TasP science, (3) difficulty changing understanding of "safe sex," (4) unwillingness to rely on partners' reports of being undetectable, (5) persistent HIV stigma, (6) less difficulty finding serosimilar partners, and (7) difficulty incorporating TasP into casual encounters. Together, these barriers confirm the existing findings about TasP adoption, and extend the literature by identifying barriers beyond a lack of education and outside of monogamous contexts.

Self-Reported Combination HIV Prevention Strategies Enacted by a Prospective Cohort of Midlife and Older Men Who Have Sex with Men in the United States: A Latent Class Analysis

Insights into combination HIV prevention (CHP) strategies to reduce HIV incidence among midlife and older adult men who have sex with men (MSM) are limited. The current study is a secondary data analysis evaluating CHP in a sample of sexually active midlife and older adult MSM (N = 566) from the Multicenter AIDS Cohort Study Healthy Aging Substudy. Stratified by HIV serostatus, we used latent class analyses to identify CHP classes based on self-reported sociobehavioral and biobehavioral prevention strategies that participants and their male partners used in the prior 6 months. We identified three CHP classes among men living without HIV (MLWOH), including the following: high CHP overall (43.0%), high anal sex abstention (15.0%), and low prevention overall (42.0%). Among men living with HIV (MLWH), we identified four CHP classes, including the following: high CHP overall (20.9%), high CHP/low condom use (27.1%), high condom reliance (22.3%), and low prevention overall (29.7%). There were small differences by sociodemographic characteristics and sexual behavior practices between the classes; however, poppers use was often linked to being in high CHP groups. Our findings support that CHP is not one-size-fits-all for midlife and older adult MSM. There remains a need to scale up clinical providers' sexual health communication practices to assist midlife and older MSM incorporate prevention strategies, particularly biobehavioral prevention strategies that align with their patients' lived experiences.

Awareness, Understanding and HIV Stigma in Response to Undetectable = Untransmittable Messages: Findings from a Nationally Representative Sample in the United Kingdom

'Undetectable = Untransmittable', or 'U = U', is a message which communicates the scientific consensus that people living with HIV who maintain an undetectable viral load cannot sexually transmit HIV to others. This research aimed to empirically test whether a protection-framed U = U message is more effective at decreasing HIV stigma and increasing perceived accuracy of U = U than a risk-framed message. A nationally representative UK sample (N = 707) completed an online experiment. Participants viewed one of two U = U messages (protection-framed or risk-framed) and completed an online questionnaire. No evidence of a difference in HIV stigma at post-test or in perceived accuracy of U = U was found between the two message frame conditions. A minority of participants were aware of U = U prior to participation. Post-intervention, the majority of participants rated U = U as at least somewhat accurate. Higher understanding of U = U was associated with lower post-test stigma following a protection-framed message. Following a brief intervention, among a sample predominantly unaware of U = U previously, there was an overall favourable rating of U = U. No evidence was found for an effect of message framing on HIV stigma or perceived accuracy of U = U, but participants who completed a pre-test measure of stigma rated U = U as less accurate.

Changing Knowledge and Attitudes Towards HIV Treatment-as-Prevention and "Undetectable = Untransmittable": A Systematic Review

People on HIV treatment with undetectable virus cannot transmit HIV sexually (Undetectable = Untransmittable, U = U). However, the science of treatment-as-prevention (TasP) may not be widely understood by people with and without HIV who could benefit from this information. We systematically reviewed the global literature on knowledge and attitudes related to TasP and interventions providing TasP or U = U information. We included studies of providers, patients, and communities from all regions of the world, published 2008–2020. We screened 885 papers and abstracts and identified 72 for inclusion. Studies in high-income settings reported high awareness of TasP but gaps in knowledge about the likelihood of transmission with undetectable HIV. Greater knowledge was associated with more positive attitudes towards TasP. Extant literature shows low awareness of TasP in Africa where 2 in 3 people with HIV live. The emerging evidence on interventions delivering information on TasP suggests beneficial impacts on knowledge, stigma, HIV testing, and viral suppression.

Review was pre-registered at PROSPERO: CRD42020153725

Prevalence of U = U Awareness and Its Association with Anticipated HIV Stigma Among Low-Income Heterosexually Active Black and Latino Adults in New York City, 2019

The fact that people with HIV (PWH) who have an undetectable viral load cannot sexually transmit HIV has been disseminated under the messaging "Undetectable = Untransmittable" (U = U). U = U messaging intends to destigmatize HIV by demonstrating that PWH can have healthy sexual lives. Among a sample of low-income heterosexually active Black and Latino adults, we aimed to (1) measure the prevalence of U = U awareness and (2) determine its association with anticipated HIV stigma. Low-income heterosexually active adults were recruited through respondent-driven sampling in New York City. Among Black and Latino participants who self-reported not having HIV, multiple linear regression was used to determine the association between U = U awareness with the following types of anticipated HIV stigma, as determined by principal component analyses: (1) general; (2) dating related; and (3) sex related. Of 485 participants, 35% were aware of U = U. Those who were aware reported less dating-related [adjusted B: -0.20; 95% confidence interval (CI): -0.37 to -0.03] and sex-related (adjusted B: -0.15; 95% CI: -0.29 to -0.002) anticipated HIV stigma. Although the prevalence of U = U awareness was much lower than reported in other populations (e.g., gender and sexual minorities and PWH), prevalence was moderate in our sample, given that awareness efforts have generally not focused on heterosexually active adults. Our findings provide preliminary evidence that U = U awareness may have an impact on anticipated HIV stigma related to dating and sex. Additional methods to disseminate U = U messaging and dismantle HIV stigma in this population should be explored.

General Practitioners as partners for a shared management of chronic HIV infection: An insight into the perspectives of Italian People Living with HIV

Is it possible to achieve a collaboration between Infectious Diseases (ID) Specialists and General Practitioners (GPs) in the management of chronic HIV infection? A cross sectional survey was conducted among People Living with HIV (PLWHIV) attending the outpatient services of four Italian Infectious Diseases Centers to understand to which extent patients trust their GPs and involve them in the management of their chronic condition. Information about level of communication with GPs, subjective perception of the disease, and presence of co-medications were collected and matched with socio-demographic data using χ2statistics. A p<0.05 was considered statistically significant. From December 2019 to February 2020, 672 patients completed the survey, 59% males and 56% >50 years. Overall, 508 patients (76%) had informed GPs about HIV-positivity. Communication of diagnosis was significantly associated with age >50years, lower education level, history of disease >10 years and residency in Northern Italy. The "Undetectable = Untrasmittable" (U = U) concept was investigated as an indirect measure of perceived stigma. 23% of subjects was unaware of its meaning. Despite undetectable status, 50% of PLWHIV found difficult to communicate their condition to GPs, especially married (52% vs 48% of unmarried, p = 0.003), well-educated patients (51% vs 48, p = 0.007), living in Southern vs Northern Italy (52% vs 46%, p< 0.001). More than 75% of the participants consulted the ID specialist for co-medications and DDIs management, often complaining a lack of communication of the former with GPs. Overall, a good level of communication between PLWHIV and GPs was outlined, even if a wider involvement of the latter in HIV care is desirable.

Early-Transmitted Variants and Their Evolution in a HIV-1 Positive Couple: NGS and Phylogenetic Analyses

We had access to both components of a couple who became infected with human immunodeficiency virus (HIV)-1 through sexual behavior during the early initial phase of infection and before initiation of therapy. We analyzed blood samples obtained at the time of diagnosis and after six months of combined antiretroviral therapy. Next-generation sequencing (NGS) and phylogenetic analyses were used to investigate the transmission and evolution of HIV-1 quasispecies. Phylogenetic analyses were conducted using Bayesian inference methods. Both partners were infected with an HIV-1 B subtype. No evidence of viral recombination was observed. The lowest intrapersonal genetic distances were observed at baseline, before initiation of therapy, and in particular in the V1V2 fragment (distances ranging from 0.102 to 0.148). One HIV-1 single variant was concluded to be dominant in all of the HIV-1 regions analyzed, although some minor variants could be observed. The same tree structure was observed both at baseline and after six months of therapy. These are the first extended phylogenetic analyses performed on both members of a therapy-naïve couple within a few weeks of infection, and in which the effect of antiretroviral therapy on viral evolution was analyzed. Understanding which HIV-1 variants are most likely to be transmitted would allow a better understanding of viral evolution, possibly playing a role in vaccine design and prevention strategies.

To Disclose, Not Disclose, or Conceal: A Qualitative Study of HIV-Positive Men with Multiple Concealable Stigmatized Identities

People living with HIV (PLHW) and other concealable stigmatized identities (CSIs) face continual decisions about the degree of openness they are willing to allow for their identities in different social contexts. Disclosing or concealment of CSIs describes potential stigma management strategies that may have distinct psychosocial consequences. This study aimed to examine disclosure processes in a sample of sexual minority men (SMM) with intersecting CSIs, who use substances and were suboptimally engaged in HIV care. Interviews (N = 33) were initially double coded following thematic analysis, which identified disclosure as a theme. Subsequently, content analysis and additional selective double coding were used to iteratively identify and refine subthemes related to disclosure decisions. Illustrative quotes and frequencies of the invoked subthemes and identities were recorded for each participant. The majority of participants discussed experiences of disclosure and nondisclosure (N = 31, 94%). Among these, a spectrum of related behaviors and preferences emerged, including active disclosure, passive disclosure, passive nondisclosure, and concealment. Across disclosure-related content, in addition to HIV status, the majority of participants also described navigating decisions about disclosure of sexual orientation (71%), substance use (61%), and multiple identities at once (55%). Findings from this study highlight the fluid and multi-dimensional nature of identity-related disclosure processes in SMM with multiple CSIs. Participants in this study possessed interlocking stigmatized identities and described being varying degrees of "out" across identities and time. Moreover, these findings challenge common beliefs that disclosure is a binary construct associated with positive gain.

Stages of Adoption of "Treatment as Prevention" Among HIV-Negative Men Who Have Sex with Men Who Engage in Exchange Sex

Prior research found low acceptability of HIV treatment as prevention (TasP; or Undetectable = Untransmittable) among HIV-negative men who have sex with men (MSM). This study reports on qualitative data regarding TasP adoption in a sample of 170 self-reported HIV-negative MSM who had engaged in exchange sex (received money, drugs, or other things in exchange for sex). We classified participants along five stages of TasP adoption: 1-unaware of TasP (11.2%); 2-aware, but perceived ineffective (17.1%); 3-perceived effective, but unwilling to use (35.3%); 4-willing to rely on TasP, but had never done so (24.1%); and 5-had relied on TasP (12.4%). Obstacles to TasP adoption included the following: not believing that it could completely prevent HIV transmission; deeply ingrained fears of HIV/AIDS; concerns about viral load fluctuation; and reluctance to trust a partner's claimed undetectable status. TasP promotion efforts, which can decrease barriers to HIV testing and HIV stigma, will be more effective if tailored to the obstacles specific to each stage of TasP adoption.