Human Immunodeficiency Virus Prevention Research Articles

Joint modeling HIV and HPV using a new hybrid agent-based network and compartmental simulation technique.

Persons living with human immunodeficiency virus (HIV) have a disproportionately higher burden of human papillomavirus infection (HPV)-related cancers. Causal factors include both behavioral and biological. While pharmaceutical and care support interventions help address biological risk of coinfection, as social conditions are common drivers of behaviors, structural interventions are key part of behavioral interventions. Our objective is to develop a joint HIV-HPV model to evaluate the contribution of each factor, to subsequently inform intervention analyses. While compartmental modeling is sufficient for faster spreading HPV, network modeling is suitable for slower spreading HIV. However, using network modeling for jointly modeling HIV and HPV can generate computational complexities given their vastly varying disease epidemiology and disease burden across sub-population groups. We applied a recently developed mixed agent-based compartmental (MAC) simulation technique, which simulates persons with at least one slower spreading disease and their immediate contacts as agents in a network, and all other persons including those with faster spreading diseases in a compartmental model, with an evolving contact network algorithm maintaining the dynamics between the two models. We simulated HIV and HPV in the U.S. among heterosexual female, heterosexual male, and men who have sex with men (men only and men and women) (MSM), sub-populations that mix but have varying HIV burden, and cervical cancer among women. We conducted numerical analyses to evaluate the contribution of behavioral and biological factors to risk of cervical cancer among women with HIV. The model outputs for HIV, HPV, and cervical cancer compared well with surveillance estimates. Model estimates for relative prevalence of HPV (1.67 times) and relative incidence of cervical cancer (3.6 times), among women with HIV compared to women without, were also similar to that reported in observational studies in the literature. The fraction attributed to biological factors ranged from 22-38% for increased HPV prevalence and 80% for increased cervical cancer incidence, the remaining attributed to behavioral. The attribution of both behavioral and biological factors to increased HPV prevalence and cervical cancer incidence suggest the need for behavioral, structural, and pharmaceutical interventions. Validity of model results related to both individual and joint disease metrics serves as proof-of-concept of the MAC simulation technique. Understanding the contribution of behavioral and biological factors of risk helps inform interventions. Future work can expand the model to simulate sexual and care behaviors as functions of social conditions to jointly evaluate behavioral, structural, and pharmaceutical interventions for HIV and cervical cancer prevention.

Opportunities to Increase Access to HIV Prevention: Evaluating the Implementation of Pharmacist-Initiated Pre-exposure Prophylaxis in California.

Pharmacies are a promising setting through which to expand access to human immunodeficiency virus (HIV) prevention, including pre-exposure and post-exposure prophylaxis (PrEP and PEP, respectively). We aimed to evaluate and inform the implementation of California's Senate Bill 159 (2019), allowing pharmacists to independently prescribe PrEP and PEP. From October through December 2022, we conducted a cross-sectional study of 919 California pharmacists and pharmacy students, primarily recruited via the email listservs of professional organizations. Participants completed an online survey assessing the implementation of pharmacist-initiated PrEP/PEP, including knowledge, attitudes, practices, perceived barriers, and implementation preferences elicited through a discrete choice experiment. Among 919 participants (84% practicing pharmacists, 43% in community pharmacies), 11% and 13% reported that pharmacists at their pharmacy initiate PrEP and PEP, respectively. Most believed that pharmacist-initiated PrEP/PEP is important (96%) and were willing to provide PrEP (81%); fewer (27%) had PrEP/PEP training. Common implementation barriers were lack of staff/time and payment for pharmacist services. Participants preferred PrEP implementation models with in-pharmacy rapid oral HIV testing and pharmacists specifically hired to provide PrEP services. Despite pharmacists' supportive attitudes, Senate Bill 159 implementation in California pharmacies remains limited, in part due to policy-level and organizational-level barriers. Ensuring PrEP/PEP-related payment for services and sufficient workforce capacity is key to leveraging pharmacists' role in HIV prevention.

Model-based predictions of protective HIV pre-exposure prophylaxis adherence levels in cisgender women

Most human immunodeficiency virus (HIV) infections occur in cisgender women in resource-limited settings. In women, self-protection with emtricitabine/tenofovir disoproxil fumarate pre-exposure prophylaxis (FTC/TDF-PrEP) constitutes a major pillar of HIV prevention. However, clinical trials in women had inconsistent outcomes, sparking uncertainty about adherence requirements and reluctance in evaluating on-demand regimens. We analyzed data from published FTC/TDF-PrEP trials to establish efficacy ranges in cisgender women. In a ‘bottom-up’ approach, we modeled hypotheses in the context of risk-group-specific, adherence–efficacy profiles and challenged those hypotheses with clinical data. We found that different clinical outcomes were related to the proportion of women taking the product, allowing coherent interpretation of the data. Our analysis showed that 90% protection was achieved when women took some product. We found that hypotheses of putative male/female differences were either not impactful or statistically inconsistent with clinical data. We propose that differing clinical outcomes could arise from pill-taking behavior rather than biological factors driving specific adherence requirements in cisgender women.

Predictors of Viral Suppression among Adults Living with HIV/AIDS in Nigeria: A Retrospective Chart Review

Background Information: Over 1.6 million Nigerians have succumbed to the ravaging scourge of the acquired immunodeficiency syndrome (AIDS) epidemic since its discovery. Viral suppression (VS) then becomes a critical cost-effective human immunodeficiency virus (HIV) prevention strategy. We assessed the prevalence and predictors of VS. Materials and Methods: This retrospective case file review was conducted among adults (aged ≥18 years) living with HIV/AIDS who accessed care at a tertiary health facility in Northwestern Nigeria between January and December 2021. Results: One thousand one hundred and twenty HIV/AIDS-eligible patients accessed care during the study. Their age ranged between 20 and 70 years with a mean of 43.83 ± 10.83 (95% confidence interval [CI]: 43.19–44.46). The patients were mostly female (728; 65.0), residing in urban areas (680; 60.7%), self-employed (440; 39.3%), married (712; 63.6%), receiving antiretroviral therapy (ART) for at most 14 years (916; 81.8%), on first-line ART regimen (812; 72.5%), in HIV clinical stage 1 (964; 86.1%), and with a baseline CD4 count of 199 cells/µl (453; 40.4%). The prevalence of VS of 64.3% (720/1120) was recorded in the study. The predictors of VS were disclosure of HIV status (odds ratio [OR] =2.4; 95% CI = 1.503–3.832), absence of opportunistic infections (OR = 2.6; 95% CI = 1.242–5.406), receiving ART for 15–29 years (OR = 2.1; 95% CI = 1.398–3.292), first-line ART regimen (OR = 3.7; 95% CI = 2.618–5.115), and adequate adherence (OR = 4.7; 95% CI = 3.324–6.766). Conclusion: VS was suboptimal among the study cohort with adequate adherence being its strongest predictor.

Decision-Making on Contraceptive Use among Women Living with Human Immunodeficiency Virus in Malaysia: A Qualitative Inquiry.

Malaysia is the first country in the Western Pacific Region to receive the validation certificate for the elimination of mother-to-child transmission of human immunodeficiency virus (HIV). The validation report recommends making sexual and reproductive health and rights of women living with HIV a priority. This article explores and assesses the sexual and reproductive health, rights, and access to healthcare services of Malaysia's women living with HIV (WLHIV). A qualitative secondary analysis conducted on 73 WLHIV from all over Malaysia comprised 11 in-depth interviews and 16 focus group discussions. Data were extracted from the original interview transcripts that emerged from the following questions: (1) "What are your experiences as a woman living with HIV in relation to your sexual and reproductive health and rights?" (2) "What are your experiences in accessing contraception?" (3) "What are your day-to-day experiences as a woman living with HIV?" Data were analyzed using thematic analysis. Four themes emerged from the study findings: "lack of negotiation," "idealism in pregnancy," "coping with restrictions," and "past and future fears." The four themes are grounded in religion, a patriarchal culture, meaning and expectations of motherhood, taking risks and going against medical advice to pursue fertility desires, fear of HIV transmission, and the side effects of contraceptive use. The complexities involved in decision-making regarding contraceptive use revealed how WLHIV may have unresolved reproductive health needs inconsistent with healthcare providers' focus on HIV management and prevention. Suggestions are made for improving the sexual and reproductive health and rights of WLHIV in Malaysia, which include establishing a reproductive health counseling program.

Programmatic mapping and estimating the population size of female sex workers, men who have sex with men, people who inject drugs and transgender populations in Kenya

Introduction Effective coverage of Human Immunodeficiency Virus prevention services for Key Populations (KPs) including female sex workers (FSWs), men who have sex with men (MSM), people who inject drugs (PWID) and transgender (TG) people necessitates periodic validation of physical venues and size estimates. Kenya conducted a robust size estimation of KPs in 2012 and a repeat mapping and size estimation exercise was conducted in 2018 to update KP Size Estimates and sub-typologies within each County for calculation of realistic program indicators. Methods A prospective mixed methods programmatic mapping approach adopted comprised two steps. The first step involved consolidating and documenting all known venues where KPs congregate while the second step included visiting and validating these venues confirming their active status. Data were collected in 34 out of 47 Counties in Kenya between January and March 2018. Data collected included estimated number of KPs (range), venue typology and timing of operation of each venue. Results We estimated a total number of 167,940 (129,271 to 206,609) FSWs; 32,580 (24,704 to 40,455) MSM; 16,063 (12,426 to 19,691) PWIDs; 10,951 (8,160 to 13,742) and 4,305 (2,826 to 5,783) transgender people congregating at 10,250, 1,729, 401 and 1,218 venues respectively. Majority of the venues for FSW (81%), MSM (64%) and transgender people (67%) were bars with and without lodging, PWIDs were mostly found on streets and injecting dens (70%). Around 9% of FSW and MSM and11% of PWIDs were below the age of 18 years. Conclusion This study provided information on young KPs, female PWIDs, MSWs and for the first time, TG people in Kenya. The exercise updated size estimates of KPs by typology and provided new evidence for resource allocation, planning of interventions and targets. Programmatic mapping continues to be a useful approach supporting programs to achieve high levels of coverage and prioritize resources.

Efficacy estimates of oral pre-exposure prophylaxis for HIV prevention in cisgender women with partial adherence.

Pre-exposure prophylaxis (PrEP) with tenofovir (TFV) disoproxil fumarate and emtricitabine administered orally daily is effective in preventing human immunodeficiency virus (HIV) acquisition in both men and women with sufficient adherence; however, the adherence-efficacy relationship in cisgender women has not been well established. We calculated the adherence-efficacy curve for cisgender women by using HIV incidence and plasma TFV concentration data from three trials (FEM-PrEP, VOICE and Partners PrEP). We imputed TFV diphosphate (TFV-DP) concentrations, a measure of long-term adherence, from TFV quantification by using data from the HIV Prevention Trials Network 082 study, which measured both TFV-DP and TFV concentrations. Two, four and seven pills per week reduced HIV incidence by 59.3% (95% credible interval (CrI) 29.9-95.8%), 83.8% (95% CI 51.7-99.8%) and 95.9% (95% CI 72.6-100%), respectively. Our adherence-efficacy curve can be validated and updated by HIV prevention studies that directly measure TFV-DP concentrations. The curve suggests that high adherence confers high protection in cisgender women. However, the lower efficacy with partial adherence highlights the need for new PrEP products and interventions to increase adherence.

Culturally adapted safer sex skills building: development andinitial testing ofan HIV prevention intervention forBlack women using substances inthe United States.

Black women who use substances in the United States face unique human immunodeficiency virus (HIV) risk factors. However, interventions addressing cultural factors relevant for preventing HIV risk behaviors among Black women are limited. This project aimed to develop and initially test the effectiveness of a culturally adapted version of safer sex skills building (SSSB), an evidence-based HIV prevention intervention for reducing HIV risk among Black women who use substances. The cultural adaptation procedures involved (i) review of existing literature, (ii) use of Delphi process and theater testing to generate an adapted version, (iii) theater testing of the culturally adapted version and (iv) initial testing. Forty-eight Black women recruited from a substance use treatment clinic in the United States participated in three 2.5-h sessions of a culturally adapted or a generic version of the intervention. More (48%) women in the culturally adapted version self-reported condom use with casual partners compared to women in the generic (29%) version at a 6-week follow-up. The two groups did not differ on self-reported condom use with main partners. The culturally adapted SSSB offers a promising intervention for sexual risk reduction among Black women who use substances. Moreover, the findings advance the field by illustrating a concrete methodology for cultural adaptation.

Sexual Practices and HIV Risk Profile of Female Sex Workers During COVID-19 Pandemic in Uyo, Nigeria

Female sex workers (FSW) are among the Human Immunodeficiency Virus (HIV) most-at-risk sub-populations worldwide. During COVID-19 pandemic, movement of people including FSWs was restricted in many parts of Nigeria. This paper reports on a study conducted to determine sexual practices and risk profile among FSWs during the COVID-19 pandemic in Uyo, Nigeria. This study was a cross-sectional study among FSWs at Uyo One-stop-shop for Key Populations from June 2020–August 2020 using a structured questionnaire. Participants were selected using systematic random sampling. Responses to consistent condom use and sexual practices with different categories of clients, prophylaxis use, and adherence were collected. Bivariate analyses were done using the Chi-square test as well as Fisher’s exact test while multivariate analysis was with logistic regression analysis and P-value of <0.05 considered statistically significant. 357 FSWs interviewed, but only 344(96.4%) had complete response. 37.2% of the respondents were within the 25-29 years age range and mean (standard deviation-SD) age of 29.06(5.20). 72.4% of the respondents reported they consistently use condoms with first-time clients and 65.7% with repeat clients. 88.7% of the respondents were unmarried and 74.4% have been FSW for ≤5 years with a mean (SD) duration of 4.95(4.02) years. 47.4% of respondents had unprotected sex when incentivized by clients. Cases of HIV exposure among respondents without prophylaxis were reported by 34.9% and 38.1% of the respondents, respectively. Overall adherence to PEP was 30.9%. A high proportion of FSWs engage in high-risk behaviors. FSWs should be advised on their role in HIV prevention through consistent condom use. Keywords: COVID-19, Female Sex Workers, Pre- and Post-Exposure Prophylaxis, Sexual Behaviours, Sexual Practices.

Knowledge and Attitude of Caregivers in Paediatrics’ HIV Management and Viral Suppression in Lagos State, Nigeria

This study assessed the knowledge, attitude and practices of caregivers of children living with HIV (Human Immuno-Deficiency Virus) in Lagos State, Nigeria. A cross-sectional study was conducted among 500 caregivers of children living with HIV who reside and are receiving treatment in a government health facility in Lagos State. The Sampling technique was purposive sampling based on some inclusion and exclusion criteria, data collection was administered by telephone interview, and the questionnaire was deployed using CAPI (Computer Assisted Personal Interviews) (Kobo Collect) for ease and time management. The study discovered that caring for children living with HIV is demanding. As most of the caregivers are married, and self-employed. The majority of the children living with HIV in this study have been on antiretroviral therapy (ART) for at least 5 years. Most caregivers are parents of the infected child/children living with HIV. Additionally, most caregivers had a good knowledge of HIV transmission and prevention, but they had limited knowledge of paediatric HIV management and had negative attitudes towards HIV. They also reported experiencing stigma and discrimination. These findings suggest that there is a need to improve the knowledge and attitudes of caregivers in order to improve the management of paediatric HIV, Interventions should be designed to address the stigma and discrimination experienced by caregivers. Accurate information should be provided to caregivers about paediatric HIV and paediatric HIV management. The results from this study may not be generalizable to other settings as this study was conducted in Lagos State. In addition, the study relied on self-reported data, which may be subject to bias. Keywords: Attitude, Caregiver, HIV, Knowledge, Practice and Viral Load.

HivNet: Studying in Depth the Morphology of HIV-1 Virion Using Deep Learning

Purpose: Human Immunodeficiency Virus (HIV) continues to be a disease that kills thousands of individuals each year. The HIV infection is incurable. However, HIV infection has turned into a treatable chronic health condition because of improved access to efficient HIV prevention, diagnosis, treatment, and care. Transmission Electron Microscopy’s (TEM) ability to directly visualize virus particles and distinguish ultrastructure morphology at the nanometer scale, makes it useful in HIV-1 research where it is used for assessing the actions of inhibitors that obstruct the maturation and morphogenesis phases of the virus lifecycle. Hence with its use, the disease's serious stage can be avoided by receiving an early diagnosis.
 Materials and Methods: Through the dedicated use of computer vision frameworks and machine learning techniques, we have developed an optimized low-computational-cost 8-layer Convolutional Neural Network (CNN) backbone capable of classifying HIV-1 virions at various stages of maturity and morphogenesis. The dataset including TEM images of HIV-1 viral life cycle phases is analysed and augmented through various techniques to make the framework robust in real-time. The CNN layers then extract pertinent disease traits from TEM images and utilise them to provide diagnostic predictions.
 Results: It was discovered that the framework performed with an accuracy of 99.76% on the training set, 85.83% on the validation set, and 91.33% on the test set, after being trained on a wide range of micrographs which comprised of different experimental samples and magnifications.
 Conclusion: The suggested network's performance was compared to that of other state-of-the-art networks, and it was discovered that the proposed model was undisputed for classifying TEM images of unseen HIV-1 virion and required less time to train and tweak its weights. The framework can operate more effectively than machine learning algorithms that consume a lot of resources and can be deployed with limited computation and memory resource requirements.

HIV destigmatization: perspectives of people living with HIV in the Kumasi Metropolis in Ghana.

Human immunodeficiency virus (HIV)-related stigma has been identified as one of the principal factors that undermines HIV prevention efforts and the quality of life of people living with HIV (PLWH) in many developing countries including Ghana. While studies have been conducted on HIV-related stigma reduction, very few have sought the views of PLWH on how this might be done. The purpose of the study was to (i) identify factors that cause HIV-related stigma in Ghana from the perspective of PLWH, (ii) identify challenges that HIV-related stigma poses to the treatment and care of PLWH, and (iii) to obtain recommendations from PLWH on what they think various groups (community members, health care providers, and adolescents) including themselves should do to help reduce HIV-related stigma in Ghana. A mixed methods cross-sectional study design was used to collect data from 404 PLWH at the Suntreso Government Hospital in the Kumasi Metropolis of Ghana across six domains using Qualtrics from November 1-30, 2022. Quantitative data was analyzed using the Statistical Package for Social Sciences (SPSS) version 26 and the Statistical Analysis System (SAS) version 9.4. Qualitative data was analyzed using a thematic approach. Most of the study participants (70.5%) said HIV-related stigma in Ghana is due to ignorance. Of this population, 90.6% indicated that they had experienced stigma because they have HIV, causing them to feel depressed (2.5%), ashamed (2.2%), and hurt (3.0%). Study participants (92.8%) indicated that the challenges associated with HIV-related stigma has affected their treatment and care-seeking behaviors. Recommendations provided by study participants for HIV destigmatization include the need for PLWH not to disclose their status (cited 94 times), community members to educate themselves about HIV (96.5%), health care providers to identify their stigmatizing behaviors (95.3%), health care providers to avoid discriminating against PLWH (96.0%), and the need for adolescents to be educated on HIV and how it is transmitted (97.0%). It is important for the government and HIV prevention agencies in Ghana to target and address co-occurring HIV-related stigma sources at various levels of intersection simultaneously This will help to shift harmful attitudes and behaviors that compromise the health and wellbeing of PLWH effectively.

Leveraging CD4 Cell Count at Entry Into Care to Monitor Success of Human Immunodeficiency Virus Prevention, Treatment, and Public Health Programming in the Greater St Louis Area Between 2017 and 2020.

CD4 cell count at entry into human immunodeficiency virus (HIV) care is a useful indicator of success of multiple steps in HIV public health programming. We demonstrate that CD4 cell count at care initiation was stable in St Louis between 2017 and 2019 but declined in 2020. Missouri efforts in the Ending the HIV Epidemic plan should focus on rapidly identifying individuals with undiagnosed HIV infection.

Acute HIV Diagnosis After Initiation of Pre-exposure Prophylaxis in a Young Adult Patient: A Case Report

Oral pre-exposure prophylaxis (PrEP) in the prevention of human immunodeficiency virus (HIV) infection is highly effective, yet the majority of sexually active adolescents and young adults (AYAs) at highest risk for HIV infection, particularly AYA males who have sex with males, have not been prescribed this medication. Provider hesitancy in prescribing PrEP to at-risk AYA patients is often associated with concerns about patient nonadherence and its effect on inducing HIV medication resistance. This case report has two aims. First, to outline the clinical course for an AYA patient prescribed PrEP for 3 months and then found to have HIV with an M184V resistance mutation and subsequently started on HIV treatment. And second, to illustrate how the benefits of PrEP initiation outweigh its risks by presenting clinical data on resistance patterns to PrEP medications. The patient eventually achieved viral suppression within 5 months of starting HIV treatment which has been sustained up to 2 years. This case illustrates that M184V resistance mutations, although rarely associated with PrEP, are unlikely to impact options for HIV treatment. Providers should recommend and prescribe oral PrEP to AYA patients at risk for HIV infection without concern for nonadherence leading to HIV medication resistance.

Assessment of Acceptability of Pre-exposure Prophylaxis for HIV Prevention Among Men Who Sex with Men and Transgender Community in Pakistan.

To assess the level of acceptability of oral pre-exposure prophylaxis (PrEP) among men who have sex with men (MSM) and transwomen (TW) in Pakistan. Cross-sectional study. Place and Duration of the Study: Online study portal from September to November 2021. The study participants were recruited through snowball sampling. Consenting individuals who were >13 years and were identified as MSM or TW were included in the study. Data were analysed using SPSS version 25. Frequencies, percentages and correlation coefficients were computed. A total of 347 participants were recruited. The mean age of all participants was 29.8 ± 6.7 years. Fifty-eight (19.7%) of the participants had chemsex with amphetamine-type stimulants (ATS) at least once in preceding six months of the study, and 58 (19.7%) had a sexually transmitted infection (STI) in preceding six months whereas 10 (3.4%) participants had used drugs via injection. Two hundred and thirty-eight (72%) of the participants were aware of PrEP, 30 (11.7%) had used PrEP in the past, and 3.88% were currently using PrEP. The willingness to use PrEP, free of cost, was shown by 300 participants (86.45%) and by 180 (54.5%), if available at a low cost. There was a high prevalence of risk factors posing them at considerable risk of human immunodeficiency virus (HIV). The majority was aware of PrEP for HIV prevention. The willingness to use PrEP was high when PrEP was offered free of cost but dropped down when participants were asked to pay for PrEP. Based on this finding, PrEP should be available free of cost at the community preferred outlets. Gay, Men who have sex with men, HIV, Pre-exposure prophylaxis Pakistan, Transwomen, Chemsex, People living with HIV.

Edukasi Pencegahan HIV-AIDS dan Mother to Child Transmission of HIV Pada Wanita Usia Subur Dalam Mendukung Indonesia Bebas AIDS 2030

Acquired Immunodeficiency Syndrome (AIDS) is a type of infection caused by the Human Immunodeficiency Virus (HIV) which attacks the immune system and causes susceptibility to a disease. HIV/AIDS cases are like an iceberg phenomenon because fewer people are checking their health status than actually happened. There are still high rates of HIV/AIDS and Mother to Child Transmission (MTCT) of HIV in the world and in Indonesia and even in Papua.So it is necessary to educate various lines of society. The purpose of this community service is to increase the knowledge of women of childbearing age about HIV/AIDS prevention and MTCT of HIV. The educational methods used were (1) Pre-test (2) Dissemination of material and leaflet (3) Evaluation of the results of educational activities with a post-test. The result of this community service was an increase in knowledge about HIV/AIDS and accompanied by MTCT of HIV. This proves that there is a positive increase after the educational intervention given.

HIV risk behavior profiles among men who have sex with men interested in donating blood: Findings from the Assessing Donor Variability and New Concepts in Eligibility study.

Individual risk assessment allows donors to be evaluated based on their own behaviors. Study objectives were to assess human immunodeficiency virus (HIV) risk behaviors in men who have sex with men (MSM) and estimate the proportion of the study population who would not be deferred for higher risk HIV sexual behaviors. Cross-sectional survey and biomarker assessment were conducted in eight U.S. cities. Participants were sexually active MSM interested in blood donation aged 18-39 years, assigned male sex at birth. Participants completed surveys during two study visits to define eligibility, and self-reported sexual and HIV prevention behaviors. Blood was drawn at study visit 1 and tested for HIV and the presence of tenofovir, one of the drugs in oral HIV pre-exposure prophylaxis (PrEP). Associations were assessed between HIV infection status or HIV PrEP use and behaviors, including sex partners, new partners, and anal sex. A total of 1566 MSM completed the visit 1 questionnaire and blood draw and 1197 completed the visit 2 questionnaire. Among 1562 persons without HIV, 789 (50.4%) were not taking PrEP. Of those not taking PrEP, 66.2% reported one sexual partner or no anal sex and 69% reported no new sexual partners or no anal sex with a new partner in the past 3 months. The study found that questions were able to identify sexually active, HIV-negative MSM who report lower risk sexual behaviors. About a quarter of enrolled study participants would be potentially eligible blood donors using individual risk assessment questions.

Trends of nonoccupational postexposure prophylaxis in the United States.

To describe national annual rates of nonoccupational postexposure prophylaxis (nPEP) in the United States. Retrospective cohort study of commercially insured individuals in the Merative MarketScan Database from January 1, 2010 to December 31, 2019. Patients at least 13 years old prescribed nPEP per recommended Centers for Disease Control and Prevention guidelines were identified using pharmacy claims. Rates of use were described overall and stratified by sex, age group, and region. These rates were qualitatively compared to the diagnosis rates of human immunodeficiency virus (HIV) observed in the data. Joinpoint analysis identified inflection points of nPEP use. Eleven thousand, three hundred and ninety-seven nPEP users were identified, with a mean age of 33.7 years. Most were males (64.6%) and lived in the south (33.2%) and northeast (32.4%). The rate of nPEP use increased 515%, from 1.42 nPEP users per 100 000 enrollees in 2010 to 8.71 nPEP users per 10 000 enrollees in 2019. The comparative nPEP use rates among subgroups largely mirrored their HIV diagnosis rates, that is, subgroups with a higher HIV rate had higher nPEP use. In the Joinpoint analysis significant growth was observed from 2012 to 2015 [estimated annual percentage change (EAPC): 45.8%; 95% confidence interval (CI): 29.4 - 64.3] followed by a more moderate increase from 2015 to 2019 (EAPC 16.0%; 95% CI: 12.6-19.6). nPEP use increased from 2010 to 2019, but not equally across all risk groups. Further policy interventions should be developed to reduce barriers and ensure adequate access to this important HIV prevention tool.

Predictive ability of the Health Belief Model in HIV prevention and management in sub-Saharan Africa: a systematic review

ABSTRACT Around 70% of global Human Immunodeficiency Virus (HIV) diagnoses are in sub-Saharan Africa (SSA), where sexual transmission remains the primary mode of HIV transmission. Poor outcomes among persons living with HIV (PLHIV) in SSA are linked to delayed diagnosis (HIV Testing and Counselling [HTC] uptake), poor linkage to HIV care and suboptimal adherence to antiretroviral therapy (ART). This study is a systematic review of published articles on the predictive ability of the Health Belief Model in HIV prevention (condom use and sexual abstinence, Pre-Exposure Prophylaxis [PrEP], Voluntary Medical Male circumcision [VMMC]) and management (HTC uptake, Post-Exposure Prophylaxis [PEP] and ART adherence) in SSA. A systematic search was conducted in PubMed, Science Direct, Google Scholar, Scopus and institutional library databases. The search followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The HBM as a holistic model was useful in predicting HIV prevention and management in SSA. Perceived benefit, susceptibility, self-efficacy, barrier and cues to action were important predictors of the likelihood of uptake of HIV prevention and management intervention. Overall, the perceived benefit was found by the majority of the studies and showed high variance to predict the likelihood of individuals taking up interventions to prevent and manage HIV in SSA. Interventions should, therefore, focus on increasing perceived benefits associated with preventing and managing HIV.

Programmatic mapping and estimating the population size of female sex workers, men who have sex with men, people who inject drugs and transgender populations in Kenya

Introduction: Effective coverage of Human Immunodeficiency Virus prevention services for Key Populations (KPs) including female sex workers (FSWs), men who have sex with men (MSM), people who inject drugs (PWID) and transgender (TG) people necessitates periodic validation of physical venues and size estimates. Kenya conducted a robust size estimation of KPs in 2012 and a repeat mapping and size estimation exercise was conducted in 2018 to update KP Size Estimates and sub-typologies within each County for calculation of realistic program indicators. Methods: A prospective mixed methods programmatic mapping approach adopted comprised two steps. The first step involved consolidating and documenting all known venues where KPs congregate while the second step included visiting and validating these venues confirming their active status. Data were collected in 34 out of 47 Counties in Kenya between January and March 2018. Data collected included estimated number of KPs (range), venue typology and timing of operation of each venue. Results: We estimated a total number of 167,940 (129,271 to 206,609) FSWs; 32,580 (24,704 to 40,455) MSM; 16,063 (12,426 to 19,691) PWIDs; 10,951 (8,160 to 13,742) and 4,305 (2,826 to 5,783) transgender people congregating at 10,250, 1,729, 401 and 1,218 venues respectively. Majority of the venues for FSW (81%), MSM (64%) and transgender people (67%) were bars with and without lodging, PWIDs were mostly found on streets and injecting dens (70%). Around 9% of FSW and MSM and11% of PWIDs were below the age of 18 years. Conclusion: This study provided information on young KPs, female PWIDs, MSWs and for the first time, TG people in Kenya. The exercise updated size estimates of KPs by typology and provided new evidence for resource allocation, planning of interventions and targets. Programmatic mapping continues to be a useful approach supporting programs to achieve high levels of coverage and prioritize resources.