Reduce HIV Transmission Research Articles

134 Macrophage migration inhibitory factor restriction of HIV-1 trans-infection from dendritic cells to CD4+ T-cells via regulation of autophagy

At mucosal surfaces, immature resident Dendritic Cells, Langerhans Cells and their subsets are the first cell types to encounter HIV-1 virus. During the early stages of infection, dendritic cells sense the virus through innate immune mechanisms inducing maturation and activating adaptive immune responses. HIV-1 subverts the immune system by hijacking dendritic cells, impairing cellular function to promote survival and propagation by trans-infection to target CD4 T-cells across the virological synapse. In a well-established model of cell-to-cell HIV-1 transfer from monocyte-derived DCs to CD4 T-cells, we have evaluated the molecular contribution of cytokines and cytokine receptors during the transfer of HIV-1 virus from DCs to CD4 T cells using a high-throughput siRNA library. Here we show that when macrophage migration inhibitory factor (MIF) is disrupted, the dynamics of HIV-1 trans-infection from DCs to T cells are greatly affected, making it a restrictive cytokine. We report a critical link between MIF expression in dendritic cells and autophagy. We show that the formation of LC3+ autophagosomes is a MIF-dependent process, required for the clearance of intracellular virus by selective degradation. Thus, the regulation of MIF expression in dendritic cells is critical in the induction of autophagy during HIV-1 infection, thereby reducing HIV-1 transmission from DC to CD4+ T cells, one of its earliest steps of entry in the host.

Longitudinal determinants of anal intercourse among women with, and without HIV in the United States

BackgroundAnal intercourse (AI) is not uncommon among U.S. women and, when condomless, confers a far greater likelihood of HIV transmission than condomless vaginal intercourse. We aim to identify determinants preceding AI, among women with, and women without HIV.Methods3708 women living with (73%), and without HIV (27%) participating in the Women’s Interagency HIV Study provided sexual behavior and other data at 6-monthly visits over a median of 9 years (1994–2014). We used generalized estimating equation models to examine sociodemographic, structural and behavioral determinants reported in the visit preceding (1) AI, and (2) condomless AI.ResultsAI was reported at least once over follow-up by 31% of women without, and 21% with HIV. AI was commonly condomless; reported at 76% and 51% of visits among women living without HIV, and with HIV, respectively. Women reporting AI were more likely to be younger (continuous variable, adjusted odds ratio (aOR) = 0.97, 95% confidence interval (CI):0.96–0.98), Hispanic (aOR = 1.88, CI:1.47–2.41) or White (aOR = 1.62, CI:1.15–2.30) compared to Black, and have at least high school education (aOR = 1.33, CI:1.08–1.65). AI was more likely following the reporting of either (aOR = 1.35, CI:1.10–1.62), or both (aOR = 1.77, CI:1.13–2.82) physical and sexual violence, excessive drinking (aOR = 1.27, CI:1.05–1.66) or any drug use (aOR = 1.34, CI:1.09–1.66), multiple male partners (aOR = 2.64, CI:2.23–3.11), exchange sex (aOR = 3.45, CI:2.53–4.71), one or more female sex partners (aOR = 1.32, CI:1.01–1.75), condomless vaginal intercourse (aOR = 1.80, CI:1.53–2.09), and high depressive symptoms (aOR = 1.23, CI:1.08–1.39).ConclusionAI disproportionally follows periods of violence victimization, substance use, multiple sex partners and depression. Better prevention messaging and biomedical interventions that reduce acquisition or transmission risk are needed, but when AI occurs in the context of violence against women, as our findings indicate, focusing on gender-based violence reduction and immediate treatment to reduce HIV transmission risk is important.

Food insecurity and the risk of HIV acquisition: findings from population-based surveys in six sub-Saharan African countries (2016–2017)

ObjectiveTo assess the potential bidirectional relationship between food insecurity and HIV infection in sub-Saharan Africa.DesignNationally representative HIV impact assessment household-based surveys.SettingZambia, Eswatini, Lesotho, Uganda and Tanzania and Namibia.Participants112 955 survey...

Pediatric AIDS-Therapeutic Successes Built on a Foundation of Pediatric Clinical Pharmacology with Pharmacokinetic-Pharmacodynamic Modeling.

Pediatric AIDS-Therapeutic Successes Built on a Foundation of Pediatric Clinical Pharmacology with Pharmacokinetic-Pharmacodynamic Modeling.

PrEP Uptake in North Carolina: Innovative Strategies for Reducing Barriers.

Pre-exposure prophylaxis (PrEP) is a biomedical HIV innovation designed to reduce HIV transmission. Unfortunately, PrEP uptake is suboptimal within many communities in the US South. Innovative interventions that integrate evidence-based strategies (e.g., mHealth and peer navigation through cyber health educators) are needed to increase PrEP uptake in North Carolina.

Male Circumcision: A Means to Reduce HIV Transmission between Truckers and Female Sex Workers in Kenya

Kenya records over 1.5 million cases of HIV-infected people with a prevalence of 4.8% among adultsin 2019, ranking Kenya as the seventh-largest HIV population in the world. A recent study showed that55.9% of Kenyan truckers pay for sex in while 46.6% had a regular partner along their trucking route inaddition to a wife or girlfriend at home. The complexity in the sexual network of Truckers, which can be aconduit for the widespread of HIV, necessitated the need to better understand the dynamics of transmissionof HIV/AIDS between truckers and female sex workers. In this study, a model is formulated for HIV/AIDSdynamics along the Northern corridor highway in Kenya. The reproduction number, disease-free equilibriumand endemic equilibrium points were determined and their stabilities were also determined using the nextgenerationmatrix method. The disease-free equilibrium is stable when R0u < 1, R0c < 1 and R0f < 1 whilethe endemic equilibrium point is stable when R0u > 1, R0c > 1 and R0f > 1. It is found that circumcision canbe used as an intervention to minimize the infection of HIV among truckers and female sex workers.

Transformation of dolutegravir into an ultra-long-acting parenteral prodrug formulation

Ultra-long-acting integrase strand transfer inhibitors were created by screening a library of monomeric and dimeric dolutegravir (DTG) prodrug nanoformulations. This led to an 18-carbon chain modified ester prodrug nanocrystal (coined NM2DTG) with the potential to sustain yearly dosing. Here, we show that the physiochemical and pharmacokinetic (PK) formulation properties facilitate slow drug release from tissue macrophage depot stores at the muscle injection site and adjacent lymphoid tissues following single parenteral injection. Significant plasma drug levels are recorded up to a year following injection. Tissue sites for prodrug hydrolysis are dependent on nanocrystal dissolution and prodrug release, drug-depot volume, perfusion, and cell-tissue pH. Each affect an extended NM2DTG apparent half-life recorded by PK parameters. The NM2DTG product can impact therapeutic adherence, tolerability, and access of a widely used integrase inhibitor in both resource limited and rich settings to reduce HIV-1 transmission and achieve optimal treatment outcomes.

Viral suppression among pregnant adolescents and women living with HIV in rural KwaZulu-Natal, South Africa: a cross sectional study to assess progress towards UNAIDS indicators and Implications for HIV Epidemic Control

BackgroundSouth Africa has made significant progress in scaling up antiretroviral therapy (ART) to achieve the aspirational goal of HIV epidemic control. The aim of this study was to determine the prevalence of HIV, assess progress towards each of the Joint United Nations Programme on HIV/AIDS (UNAIDS) indicators and determine factors associated with achieving viral suppression among pregnant adolescents and women living with HIV in rural KwaZulu-Natal, South Africa.MethodsPregnant adolescents and women, 12 years and older seeking antenatal care at six primary health care clinics were enrolled in a cross-sectional study. Following written informed consent, structured questionnaires were administered, and finger-prick blood samples were collected for HIV antibody testing and viral load measurement. Viral suppression was defined as HIV viral load of < 400 copies per mL.ResultsBetween Dec 2016 and March 2017, among the 546 enrolled participants, data for 545 were analysed. The overall HIV prevalence was 40.2% [95% Confidence Interval (CI) 36.1–44.3]. Age-stratified prevalence increased from 22.1% (95% CI, 15.9–30.0) in the 14–19 year age group to 63.9% (95% CI, 55.1–71.9) among women ≥ 30 years (Χ2 trend P < 0.0001). Of the HIV positive participants, 84.5% (95% CI, 79.0–88.8) knew their HIV positive status, 98.3% (95% CI 95.1–99.4) who knew their status were on ART, and of those on ART, 95.9% (95% CI 91.8–98.0) were virally suppressed. Among all HIV-positives 90.8% (95% CI, 86.3–94.0) had achieved viral suppression, whilst those in the 14–19 year age group were least likely to be virally suppressed at 82.8% (95% CI 65.5–92.4) compared to those in the older age groups. Married women compared to those unmarried were more likely to have achieved viral suppression (PRR) of 1.11 (95% CI 1.05–1.18), P < 0.001.ConclusionsThe proportion of HIV positive pregnant women achieving viral suppression was encouraging though far short of the target towards achieving epidemic control. Importantly, adolescent pregnant women were less likely to know their HIV status and to achieve viral suppression, underscoring the public health implications of sustained risk of HIV transmission. Thus, greater effort and strong social support are essential to improve HIV knowledge of status and care continuum towards the goal to achieving HIV epidemic control.Plain language summaryTo “fast-track” the response to achieve HIV epidemic control and end the AIDS epidemic, the Joint United Nations Programme on HIV/AIDS (UNAIDS) set ambitious HIV testing and treatment targets for people living with HIV. Meeting these targets through scaling up testing for HIV, initiating and sustaining antiretroviral therapy (ART) to maintain viral suppression provides both therapeutic and preventive benefits with the potential to reduce HIV transmission. Viral suppression among pregnant adolescents and women living with HIV is crucial for the prevention of mother-to-child transmission of HIV including onward transmission to sexual partners. As a public health approach, in South Africa all pregnant women are offered routine HIV testing and immediate initiation of lifelong ART irrespective of CD4 cell count. It is, therefore, important to ascertain progress towards reaching the targets. The proportion of HIV positive pregnant adolescents and women achieving viral suppression was encouraging though far short of the target towards achieving epidemic control. Importantly, pregnant adolescents were less likely to know their HIV status and to achieve viral suppression, underscoring the public health implications of sustained risk of HIV transmission. Thus, greater effort and strong social support are essential to improve HIV knowledge of status and care continuum towards the goal to achieving HIV epidemic control.

Talking to My Partners About PrEP: Factors Associated with PrEP-Related Communication in a Longitudinal US Study of Sexual Minority Men Living with HIV.

Treatment as prevention and pre-exposure prophylaxis (PrEP) have reduced HIV transmission among sexual minority men (SMM). However, little is known about PrEP-related communication in serodiscordant partnerships. In 2015-2016, 965 US SMM living with HIV (Mage = 39; 63% White, 19% Black, 18% Latinx) enrolled in a year-long longitudinal study with surveys every 3months (2,850 surveys). Multilevel models explored factors associated with PrEP-related communication with HIV-negative partners. Most participants (77%) reported PrEP-related communication. Participants were more likely to discuss PrEP during periods with more sexual partners, AOR = 2.89, p < .001, and group sex, AOR = 1.99, p = .001. Those with more partners on average, β = 0.48, p < .001, and those engaging in other drug use more frequently, β = 0.11, p = .002, were more likely to discuss PrEP. PrEP-related communication was more common for men who disclosed their HIV status, β = 0.22, p < .001, and who had undetectable viral loads, β = 0.25, p = .007. Communication was also more common for those with higher incomes, β = 0.12, p = .02, and from larger cities, β = 0.07, p = .048, and less common for Black participants, β = - 0.29, p = .003, and older participants, β = - 0.18, p < .001. PrEP-related communication increased over the course of the study, AOR = 1.16, p= .02. PrEP can confer additional HIV prevention benefits within serodiscordant partnerships, and future research should continue to explore the role PrEP plays in these partnerships.

Pharmacological Targeting of Sphingosine Kinases Impedes HIV-1 Infection of CD4 T Cells through SAMHD1 Modulation.

ABSTRACTSphingosine-1-phosphate (S1P) is a sphingolipid modulator of a myriad of cellular processes, and therapeutic targeting of S1P signaling is utilized clinically to treat multiple sclerosis. We have previously shown that functional antagonism of S1P receptors reduces cell-free, cell-to-cell, and latent HIV-1 infection in primary CD4 T cells. In this work, we examined whether targeting sphingosine kinase 1 or 2 (SPHK1/2) to inhibit S1P production would prevent infection using multiple HIV-1 primary isolates and infectious molecular clones. SPHK inhibition reduced HIV transmission between primary CD4 T cells in both cell-to-cell transmission and pretreatment coculture models. Mechanistically, pharmacological inhibition of SPHK reduced susceptibility to infection primarily by downregulating phosphorylated SAMHD1 (pSAMHD1), enhancing the activity of this innate HIV-1 restriction factor. Furthermore, genetic disruption of either SPHK1 or SPHK2 by CRISPR/Cas9 reduced phosphorylation of SAMHD1, demonstrating the role of these kinases in modulation of SAMHD1 activity. The effect of SPHK inhibition on limiting HIV-1 infection in CD4 T cells was observed irrespective of the biological sex or age of the donor, with neither variable significantly influencing the effectiveness of SPHK inhibition. Our results demonstrate that targeting SPHK inhibits transmission of HIV-1 via modulation of SAMHD1 phosphorylation to decrease permissiveness to infection in CD4 T cells and suggests that therapeutic targeting of this pathway early in infection enables development of strategies to prevent establishment of infection and hinder cell-to-cell transmission of HIV-1.IMPORTANCE HIV-1 infection, once established, requires lifelong treatment due to the ability of the virus to maintain latent infection in its host and become reactivated during an interruption in antiretroviral treatment (ART). Although preventing transmission and acquisition of HIV is an important goal, no ART thus far have exploited harnessing a component of the host immune system to combat transmission of the virus. We have previously shown that inhibition of sphingosine-1-phosphate (S1P) receptors, a component of S1P signaling, reduces HIV-1 infection in human CD4 T cells. We therefore investigated inhibition of sphingosine kinases, another element of this signaling system, in this work. We found that inhibition of sphingosine kinases 1 and 2 (SPHK1/2) could reduce HIV-1 transmission, both among CD4 T cells and between macrophages and CD4 T cells. Our research therefore suggests that therapeutic targeting of SPHK or S1P receptors may aid in the development of strategies to prevent establishment and transmission of HIV-1 infection among immune cells.

Substance use is associated with condomless anal intercourse among men who have sex with men in India: a partner-level analysis

BackgroundMen who have sex with men (MSM) bear a disproportionately high burden of new HIV infections while lagging behind other populations with respect to engagement across the HIV care continuum. General risk factors for condomless anal intercourse (CAI) among MSM are well studied but there is a paucity of partner-level data, where emerging evidence suggests that much of the variation in condom use occurs.MethodsMSM were recruited across 10 cities in India using respondent-driven sampling (RDS) from 2016–17. Among the individuals who reported sexual intercourse in the prior 6 months, condom use and partner characteristics of the last 4 partners were captured. Correlates of CAI at the individual and partner level were determined using Poisson regression models using generalized estimating equations and incorporating RDS-II weights, which weights estimates for the participant’s network size.ResultsAmong the 8,086 individuals, 21,723 sexual partnerships were analyzed. The prevalence of CAI was 46.9% and most partners were casual or one-time (70.7%) with partner HIV status reported as unknown in 42.6% of the sexual encounters. In multivariable analyses, partner-level characteristics associated with higher likelihood of CAI included unknown partner HIV status (aPR vs. known HIV negative partner: 1.34; 95% confidence interval (CI): 1.27–1.43) and use of alcohol/ drugs prior to intercourse either sometimes (aPR 1.42; 95% CI: 1.33–1.51) or always (aPR 1.31; 95% CI: 1.23–1.41). At an individual level, any HIV treatment literacy was associated with a lower likelihood of CAI (aPR 0.80; 95% CI: 0.74–0.86).ConclusionsTo reduce HIV transmission among this population of MSM across India, combination interventions are likely needed. Interventions targeting substance use and education as well as initiatives to increase self-testing are urgently needed among MSM in India and have the potential to reduce HIV transmission in this high-risk population.Trial registrationClinicalTrials.gov Identifier: NCT01686750. Date of Registration: September 18, 2012.

Stigma, Social Cohesion, and HIV Risk Among Sexual and Gender Minorities in Two Cities in Zimbabwe

Though stigma is a recognized contributor to the disproportionate HIV burden among sexual and gender minorities (SGM) in sub-Saharan Africa, data describing this association among Zimbabwean SGM are limited. We examined relationships between SGM stigma and HIV and the potential for social cohesion to moderate the association among Zimbabwean men who have sex with men, transgender women, and genderqueer individuals. Consenting participants (n = 1511) recruited through respondent-driven sampling for a biobehavioral survey in Harare and Bulawayo completed structured interviews and received HIV testing. Reported SGM stigma was common (68.9% in Harare and 65.3% in Bulawayo) and associated with HIV infection in Harare (adjusted prevalence ratio [aPR] = 1.82, 95% confidence interval [CI] = 1.27–2.62) and Bulawayo (aPR = 1.51, 95% CI = 1.15–2.00) in relative risk regression. Social cohesion did not moderate these relationships. Findings demonstrate stigma’s association with HIV vulnerability among Zimbabwean SGM, highlighting the need for stigma-mitigation to reduce HIV transmission in this population.

Predictors of Re-Initiation of Daily Oral Preexposure Prophylaxis Regimen After Discontinuation.

Daily oral preexposure prophylaxis (PrEP) for reducing HIV transmission is recommended for those at elevated risk, including sexual gender and minorities assigned male at birth (SGM-AMAB). Few studies have examined re-initiation among PrEP discontinuers, which is critical to ensuring optimization of PrEP’s protection. The current study examined predictors of re-initiation in a longitudinal sample of SGM-AMAB PrEP discontinuers (n = 253) from 10 waves of an ongoing cohort study (analytic n = 1,129). Multilevel structural equation models were used to examine the effects of psycho-social variables on re-initiation. In adjusted models, health insurance, and partner HIV positive status were significantly positively associated with PrEP re-initation. Being bisexual was significantly negatively associated with re-initiation relative to gay participants. Single status and open relationship agreements were associated with higher odds of re-initiation relative to monogamous relationships. Findings suggest that demographic, partnership characteristics and structural factors influence decisions to re-initiate PrEP after discontinuation.

Integrating Cognitive Dysfunction Accommodation Strategies Into Behavioral Interventions for Persons on Medication for Opioid Use Disorder.

BackgroundCognitive dysfunction is disproportionately prevalent among persons with opioid use disorder (OUD). Specific domains of cognitive dysfunction (attention, executive functioning, memory, and information processing) may significantly impede treatment outcomes among patients on medication for OUD (MOUD). This limits patient's ability to learn, retain, and apply information conveyed in behavioral intervention sessions. Evidence-based accommodation strategies have been integrated into behavioral interventions for other patient populations with similar cognitive profiles as persons with OUD; however, the feasibility and efficacy of these strategies have not yet been tested among patients on MOUD in a drug treatment setting.MethodsWe conducted a series of focus groups with 25 key informants (10 drug treatment providers and 15 patients on MOUD) in a drug treatment program in New Haven, CT. Using an inductive approach, we examined how cognitive dysfunction impedes participant's ability to retain, recall, and utilize HIV prevention information in the context of drug treatment.ResultsTwo main themes capture the overall responses of the key informants: (1) cognitive dysfunction issues and (2) accommodation strategy suggestions. Subthemes of accommodation strategies involved suggestions about particular evidence-based strategies that should be integrated into behavioral interventions for persons on MOUD. Specific accommodation strategies included: use of a written agenda, mindfulness meditation, multi-modal presentation of information, hands-on demonstrations, and a formal closure/summary of sessions.ConclusionsAccommodation strategies to compensate for cognitive dysfunction were endorsed by both treatment providers and patients on MOUD. These accommodation strategies have the potential to enhance the efficacy of behavioral interventions to reduce HIV transmission among persons on MOUD as well as addiction severity, and overdose.

Clinical Outcomes of Adults With Diagnosed HIV Living in Ending the HIV Epidemic Priority Areas, Medical Monitoring Project, 2018.

The Ending the HIV Epidemic (EHE) initiative prioritizes treatment and prevention efforts in counties where most new HIV diagnoses occur and states with substantial incidence of new HIV diagnoses in rural areas. Understanding the characteristics of adults with HIV living in EHE priority areas, and how these characteristics compare with adults with HIV living in non-EHE priority areas, can inform EHE efforts. We analyzed data from the 2018 Medical Monitoring Project (MMP) to understand the characteristics of adults with HIV living in 36 of 48 EHE priority counties; San Juan, Puerto Rico; and 1 of 7 EHE priority states. We calculated weighted percentages of sociodemographic characteristics, behaviors, and clinical outcomes of adults with diagnosed HIV living in MMP EHE priority areas and compared them with characteristics of adults who did not live in MMP EHE priority areas using prevalence ratios (PRs) with predicted marginal means. Living in an MMP EHE priority area was more common among adults who were non-Hispanic Black or Hispanic, experienced homelessness, or were food insecure compared with adults who were non-Hispanic White (59.3% and 58.4% vs 41.0%), not experiencing homelessness (60.9% vs 51.9%), or not food insecure (59.8% vs 51.0%). Adults who lived in MMP EHE priority areas were significantly less likely to be adherent to their HIV medications (PR = 0.95; 95% CI, 0.91-0.99) and durably virally suppressed (PR = 0.94; 95% CI, 0.91-0.97), and more likely to miss scheduled appointments for HIV care (PR = 1.31; 95% CI, 1.10-1.56) than adults who did not live in MMP EHE priority areas. To increase viral suppression and reduce HIV transmission, it is essential to strengthen public health efforts to improve medication and appointment adherence in this population.

Interventions to improve early retention of patients in antiretroviral therapy programmes in sub-Saharan Africa: A systematic review.

BackgroundSeveral interventions to improve long term retention (12 months and above) on treatment have been rigorously evaluated in Sub-Saharan Africa (SSA). However, research on interventions to improve retention of patients in the early stages of treatment (6 months) during this era of Universal Test and Treat has only recently emerged. The aim of this study is to systematically map evidence of interventions used to improve early retention of patients in antiretroviral therapy (ART) programmes in SSA.MethodsWe searched PubMed, EMBASE and Cochrane electronic databases to identify studies describing interventions aimed at improving early retention in ART treatment. We applied the methodological frameworks by Arksey and O’Malley (2005) and Levac et al. (2010). We also followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) checklist. Interventions were categorized according to key broad areas in the existing literature.ResultsA total of 2,241 articles were identified of which 19 met the inclusion criteria and were eligible for this review, with the majority either being randomized control trials 32% (n = 6) or cohort studies 32% (n = 6). The studies reviewed were conducted in 11 SSA countries. The most common interventions described under key broad areas included: Health system interventions such as Universal Test-and-Treat, integration of ART initiation, HIV Testing and Counselling and Antenatal Care services and reduction of ART drug costs; Patient centered approaches such as fast track ART initiation, Differentiated Drug Delivery models and point of care HIV birth testing; Behavioral interventions and support through lay counselors, mentor mothers, nurse counselors and application of quality improvement interventions and financial incentives. Majority of the studies targeted the HIV positive adults and pregnant women.ConclusionWith the introduction of Universal Test-and-Treat and same-day initiation of ART, findings suggest that adoption of policies that expand ART uptake with the goal of reducing HIV transmission at the population level, promoting patient centered approaches such as fast track ART initiation, Differentiated Service Delivery models and providing adequate support through Mentor Mothers, lay and nurse counselors may improve early retention in HIV care in SSA. However, these interventions have only been tested in few countries in the region which points to how hard evidence based HIV programming is. Further research investigating the impact of individual and a combination of interventions to improve early retention in HIV care, including for various groups at high risk of attrition, is warranted across SSA countries to fast track the achievement of 95-95-95 Joint United Nations Programme on HIV/AIDS (UNAIDS) targets by 2030.

Behavioral and social interventions to promote optimal HIV prevention and care continua outcomes in the United States.

This review reports on trends in behavioral and social intervention research in the United States published over the past year (2020-2021) investigating HIV prevention and care outcomes, organized by the level of intervention focus - individual, dyadic, and organizational. Researchers have continued to develop and evaluate behavioral and social interventions to reduce HIV acquisition risk and disease progression. With few exceptions, social and behavioral interventions have primarily focused on individuals as the unit of behavior change. Interventions operating at the individual-, dyadic-, and organizational-level have made strides to reduce HIV transmission risk and disease progressing by addressing mental health, substance use, stigma, peer and romantic relationships, and, to some extent, structural vulnerabilities. Social and behavioral interventions continue to be critical in addressing HIV inequities in the United States. An important gap in the literature is the need for multilevel interventions designed and implemented within existing community-based organizations and local healthcare settings. We call on researchers to continue to attend to the structural, environmental, and economic vulnerabilities that shape HIV inequities in the development of multilevel approaches necessary to realize the full potential of existing and emerging HIV prevention and care strategies.

HIV Preexposure Prophylaxis Training in Family Medicine Residencies: A National Survey.

Preexposure prophylaxis (PrEP) reduces HIV transmission among high-risk individuals. Yet, the HIV epidemic continues to expand among marginalized populations and America's Southeastern states. Various barriers remain to PrEP uptake, namely provider knowledge and education. We sought to investigate residency training, competency, and prescribing of PrEP among population size. Additionally, we asked program directors to identify barriers to PrEP. We surveyed family medicine program directors as part of the Council of Academic Family Medicine Educational Research Alliance survey from January 2018 through February 2018. Our survey questions had a 52.9% (276/522) response rate. No programs in rural communities less than 30,000 population (0/27) reported significant PrEP training for their residents; those in nonrural communities of at least 30,000 reported this training more frequently (41/246, 16.7%). Compared to Fischer expected values, the finding was statistically significant (P=.019); using a 75,000 population demarcation lowered significance (P=.192). We found programs that identify significant PrEP training also cite more PrEP prescribing within their practice (OR 7.27, P&lt;.001). Programs with significant training also report their residents graduate with greater PrEP competency (OR 18.33, P&lt;.001). The largest barriers identified were faculty expertise, not having enough high-risk patients, inadequate screening, and resident knowledge/training. We identified natural associations between increased training in PrEP and perceived PrEP competencies. We identified a lack of significant PrEP training and associated PrEP competencies in rural residency programs. Barriers identified in this study can help inform curricular needs to improve primary care workforce capacity to lower HIV risk.

Prevalence of HIV infection and associated factors among infants born to HIV-positive mothers in health institutions, northwest Ethiopia, 2021

Background:Mother-to-child transmission of the HIV remains the main source of HIV infection in children. Targeting pregnant women attending antenatal care follow-up provides a unique opportunity for implementing prevention of mother-to-child transmission programs against HIV infection in newborn babies.Objective:The objective of this study was to assess the prevalence of HIV infection and associated factors among infants born to HIV-positive mothers in the prevention of mother-to-child transmission clinic in the Gondar city health institutions, Northwest Ethiopia, 2021.Methods:Documents were reviewed at the facility. Infants who had been exposed to HIV were enrolled in the study from 1 May–20 June 2021 prevention of mother-to-child transmission service in Gondar health institutions. To collect data from the charts, a structured data extraction tool was developed. The data were entered and analyzed with SPSS version 25 software. Both bivariate and multivariate logistic regression models were fitted to identify factors associated with HIV infection. The crude and adjusted odds ratios with a 95% confidence interval were calculated to determine the significance level.Result:The prevalence of HIV infection among infants born to HIV-positive mothers at the prevention of mother-to-child transmission level was found to be 8.1% (95% confidence interval = 7.3–12.9). Mixed infant feeding practice (adjusted odds ratio = 5.15, 95% confidence interval = 1.82–14.56), mothers’ lack of education (adjusted odds ratio = 3.43, 95% confidence interval = 2.26–5.0), absence of antenatal care follow-up (adjusted odds ratio = 1.82, 95% confidence interval = 1.17–4.02), and home delivery (adjusted odds ratio = 2.24, 95% confidence interval = 2.10–7.45) were statistically significantly associated with infants’ HIV infection.Conclusion:The prevalence of HIV infection in babies born to HIV-positive mothers was found to be high. Significant factors include mixed infant feeding practice, mothers’ lack of education, antenatal care follow-up, and home delivery. We also proposed that skilled delivery care and community education could reduce HIV transmission from mother to child.

Injecting drug use & HIV prevalence among female sex workers: Evidence from the National Integrated Biological & Behavioural Surveillance, India.

Female sex workers (FSWs) who inject drugs (FSW-IDs) have a higher risk of HIV infection and transmission. Understanding the socio-demographic characteristics and other risk behaviours among FSW-IDs will help in strengthening targeted interventions for HIV prevention and management. In the present study, the HIV prevalence, associated socio-demographic characteristics and risk behaviours among FSWs who injected drugs (FSW-IDs) and those who did not ID (FSW-NIDs) was determined in India. The national cross-sectional, community-based, integrated biological and behavioural surveillance was conducted in 2014-2015 at 73 randomly selected FSW domains across 28 States and Union Territories in India. The sample size was fixed at 400 for each domain, and a probability-based sampling method was followed. The data were analyzed by logistic regression methods. Data from 27,007 FSWs were included in the analysis, of which 802 (3%) were FSW-IDs. HIV prevalence among FSW-IDs was significantly higher than that in FSW-NIDs (4.5 vs. 1.9%). Univariate analysis showed that factors significantly associated with higher HIV prevalence among FSW-IDs were older age, sex work as the only source of income, dissolved marriage, living with a sex worker, urban locality of sex work and consumption of alcohol or oral drugs. In multivariable analysis, factors such as older age of FSW-IDs (35 yr and above), having a dissolved marriage and sex work being the only source of income were observed to be independently and significantly associated with higher HIV prevalence. Scaling up the HIV preventive interventions for FSW-IDs, such as facilitating awareness and improved access to needle and syringe exchange programme (NSEP) and opioid substitution therapy (OST), encouraging safe sex and injecting practices, educating on the harmful effects of alcohol and drugs and providing alternative vocation options to secure their financial needs are several strategies that may reduce HIV transmission among FSWs.