Sustained High HIV Incidence in Young Women in Southern Africa: Social, Behavioral, and Structural Factors and Emerging Intervention Approaches

Bibliometric analysis of research on the effects of human immunodeficiency virus in orthopaedic and trauma surgery

BACKGROUND

There is little research investigating how human immunodeficiency virus (HIV) affects outcomes in orthopaedic surgery. With advances in treatment, HIV has become a chronic health problem and the chance of orthopaedic surgeons encountering it in clinical practice is increasing.

AIM

To ascertain the quantity and quality of peer-reviewed publications in orthopaedic journals about HIV.

METHODS

A search of the Web of Science database was carried out, identifying any articles relating to HIV published in orthopaedic journals. These were assessed for geographic origin and level of evidence.

RESULTS

Of 48.7% of orthopaedic journals listed on the Web of Science database had published articles relating to HIV. There were 168 articles about HIV in orthopaedic journals with only 40.5% (n = 68) published in the time frame we analysed (January 2007 to September 2017). Very few articles came from low-income countries and any articles published from that setting were collaborations. All of the articles were low level of evidence.

CONCLUSION

There is a need for more high level orthopaedic and trauma research investigating the effects of HIV, particularly research from low-income countries, where higher level research will help to guide improvements in their treatment of its musculoskeletal manifestations and complications.

The Disclosure Dilemma: Willingness to Disclose a Positive HIV Status Among Individuals Preparing for HIV Testing During Antenatal Care in Tanzania

HIV status disclosure can reduce transmission risks and improve care engagement. Individuals may have strong feelings about HIV disclosure even prior to diagnosis. We assessed willingness to disclose a positive HIV status among pregnant women and their male partners awaiting routine HIV testing during antenatal care in Tanzania (n = 939). Logistic regression models were used to examine factors associated with willingness to disclose to one's inner circle (partner/family member) and outer circle (friend/neighbor) in the event of an HIV diagnosis. Almost all (93%) were willing to disclose to at least one person; participants were more willing to disclose to their inner circle (91%) vs outer circle (52%). Individuals with some form of employment, more stigmatizing attitudes of social distancing of PLWH, greater anticipated HIV stigma, more perceived social support, and prior contact with someone living with HIV were more likely to disclose to their inner circles. Individuals who were older, male, and who had higher levels of perceived social support were more willing to disclose to their outer circle. These findings increase the understanding of the intra- and interpersonal factors that influence HIV disclosure decisions. Tailored pre- and post- HIV test counseling are needed to facilitate social support and overcome barriers to disclosure if they test positive for HIV.

Deep Gene Sequence Cluster Analyses of Multi-Virus-Infected Mucosal Tissue Reveal Enhanced Transmission of Acute HIV-1

During heterosexual HIV-1 transmission, a genetic bottleneck occurs in the newly infected individual as the virus passes from the mucosa, leading to systemic infection with a single transmitted HIV-1 clone in the recipient. This bottleneck in the recipient has just been described, and the mechanisms involved in this selection process have not been elucidated.

Exposure of the genital mucosa to a genetically diverse viral swarm from the donor HIV-1 can result in breakthrough and systemic infection by a single transmitted/founder (TF) virus in the recipient. The highly diverse HIV-1 envelope (Env) in this inoculating viral swarm may have a critical role in transmission and subsequent immune response. Thus, chronic (Env_chronic) and acute (Env_acute) Env chimeric HIV-1 were tested using multivirus competition assays in human mucosal penile and cervical tissues. Viral competition analysis revealed that Env_chronic viruses resided and replicated mainly in the tissue, while Env_acute viruses penetrated the human tissue and established infection of CD4⁺ T cells more efficiently. Analysis of the replication fitness, as tested in peripheral blood mononuclear cells (PBMCs), showed similar replication fitness of Env_acute and Env_chronic viruses, which did not correlate with transmission fitness in penile tissue. Further, we observed that chimeric Env viruses with higher replication in genital mucosal tissue (chronic Env viruses) had higher binding affinity to C-type lectins. Data presented herein suggest that the inoculating HIV-1 may be sequestered in the genital mucosal tissue (represented by chronic Env HIV-1) but that a single HIV-1 clone (e.g., acute Env HIV-1) can escape this trapped replication for systemic infection.

IMPORTANCE During heterosexual HIV-1 transmission, a genetic bottleneck occurs in the newly infected individual as the virus passes from the mucosa, leading to systemic infection with a single transmitted HIV-1 clone in the recipient. This bottleneck in the recipient has just been described (K. Klein et al., PLoS Pathog 14:e1006754, https://doi.org/10.1371/journal.ppat.1006754), and the mechanisms involved in this selection process have not been elucidated. However, understanding mucosal restriction is of the utmost importance for understanding dynamics of infections and for designing focused vaccines. Using our human penile and cervical mucosal tissue models for mixed HIV infections, we provide evidence that HIV-1 from acute/early infection, compared to that from chronic infection, can more efficiently traverse the mucosal epithelium and be transmitted to T cells, suggesting higher transmission fitness. This study focused on the role of the HIV-1 envelope in transmission and provides strong evidence that HIV transmission may involve breaking the mucosal lectin trap.

Youth Preferences for HIV Testing in South Africa: Findings from the Youth Action for Health (YA4H) Study Using a Discrete Choice Experiment

We conducted a discrete choice experiment (DCE) and quantified preferences for HIV testing among South African youth (Nov 2018 to Mar 2019). Six attributes and levels were identified through qualitative methods: source of HIV information; incentive amount and type; social support; testing method; and location. Each participant chose one of two options that comprised six attributes across 18 questions. Conditional logistic regression estimated the degree of preference [β]. Of 130 participants, median age was 21 years (interquartile range 19-23 years), majority female (58%), and 85% previously tested for HIV. Testing alone over accompanied by a friend (β = 0.22 vs. - 0.35; p < 0.01); SMS text over paper brochures (β = 0.13 vs. - 0.10; p < 0.01); higher incentive values (R50) over no incentive (β = 0.09 vs. - 0.07; p = 0.01); and food vouchers over cash (β = 0.06 vs. β =  - 0.08; p = 0.01) were preferred. Testing at a clinic or home and family encouragement were important. Tailoring HTS to youth preferences may increase HIV testing.

Acceptability, safety, and patterns of use of oral tenofovir disoproxil fumarate and emtricitabine for HIV pre-exposure prophylaxis in South African adolescents: an open-label single-arm phase 2 trial

BACKGROUND

HIV incidence among adolescents in southern Africa remains unacceptably high. Pre-exposure prophylaxis (PrEP) is an effective HIV prevention intervention but there are few data on its implementation among adolescents. We aimed to investigate the safety, feasibility, and acceptability of PrEP with oral tenofovir disoproxil fumarate and emtricitabine as part of a comprehensive HIV prevention package in an adolescent population in South Africa.

METHODS

This open-label single-arm phase 2 study (PlusPills) was done in two research clinics in Cape Town and Johannesburg, South Africa. Adolescents aged 15-19 years were recruited into the study through recruitment events and outreach in the community. Potential participants were eligible for enrolment if they reported being sexually active. Exclusion criteria were a positive test for HIV or pregnancy at enrolment, breastfeeding, or any relevant co-morbidities. Participants were given oral tenofovir disoproxil fumarate and emtricitabine for PrEP to take daily for the first 12 weeks and were then given the choice to opt in or out of PrEP use at three monthly intervals during scheduled clinic visits. Participants were invited to monthly visits for adherence counselling and HIV testing during the study period. The primary outcomes were acceptability, use, and safety of PrEP. Acceptability was measured by the proportion of participants who reported willingness to take up PrEP and remain on PrEP at each study timepoint. Use was defined as the number of participants who continued to use PrEP after the initial 12-week period until the end of the study (week 48). Safety was measured by grade 2, 3, and 4 laboratory and clinical adverse events using the Division of AIDS table for grading the severity of adult and paediatric adverse events, version 1.0. Dried blood spot samples were collected at each study time-point to measure tenofovir diphosphate concentrations. This trial is registered with ClinicalTrials.gov, NCT02213328.

FINDINGS

Between April 28, 2015, and Nov 11, 2016, 244 participants were screened, and 148 participants were enrolled (median age was 18 years; 99 participants [67%] were female) and initiated PrEP. PrEP was stopped by 26 of the 148 (18%) participants at 12 weeks. Cumulative PrEP opt-out, from the total cohort, was 41% (60 of 148 participants) at week 24 and 43% (63 of 148 participants) at week 36. PrEP was well tolerated with only minor adverse events (grade 2) thought to be related to study drug, which included headache (n=4, 3%), gastrointestinal upset (n=8, 5%), and skin rash (n=2, 1%). Two participants (1%) experienced grade 3 weight loss, which was deemed related to the study drug and resolved fully when PrEP was discontinued. Tenofovir diphosphate concentrations were detectable (>16 fmol/punch) in dried blood spot samples in 108 (92%) of 118 participants who reported PrEP use at week 12, in 74 (74%) of 100 participants at week 24, and in 22 (59%) of 37 participants by the study end at week 48.

INTERPRETATION

In this cohort of self-selected South African adolescents at risk of HIV acquisition, PrEP appears safe and tolerable in those who continued use. PrEP use decreased throughout the course of the study as the number of planned study visits declined. Adolescents in southern Africa needs access to PrEP with tailored adherence support and possibly the option for more frequent and flexible visit schedules.

FUNDING

National Institute of Allergy and Infectious Diseases of the US National Institutes of Health.

A Systematic Review of HIV Interventions for Young Women in Sub-Saharan Africa

Adolescent girls and young women (AGYW) ages (15-24 years old) in Southern and Eastern Africa account for nearly 30% of all new HIV infections. We conducted a systematic review of studies examining the effectiveness of behavioral, structural, and combined (behavioral + structural) interventions on HIV incidence and risky sexual behaviors among AGYW. Following PRISMA guidelines, we searched PubMed, CINAHL, Web of Science, and Global Health. Twenty-two studies met inclusion criteria conducted in Eastern and Southern Africa and comprised behavioral, structural, or combined (behavioral and structural) interventions. All findings are based on 22 studies. HIV incidence was significantly reduced by one structural intervention. All three types of interventions improved condom use among AGYW. Evidence suggests that structural interventions can reduce HIV incidence, while behavioral and combined interventions require further investigation.

Prevalence and incidence of pre-diabetes and diabetes mellitus among people living with HIV in Ghana: Evidence from the EVERLAST Study

BACKGROUND

Available data from high-income countries suggest that people living with HIV (PLWH) have a four-fold higher risk of diabetes compared with HIV-negative people. In sub-Saharan Africa, with 80% of the global burden of HIV, there is a relative paucity of data on the burden and determinants of prevalent and incident dysglycaemia.

OBJECTIVES

To assess the prevalence and incidence of pre-diabetes (pre-DM) and overt diabetes mellitus (DM) among PLWH in a Ghanaian tertiary medical centre.

METHODS

We first performed a cross-sectional comparative analytical study involving PLWH on combination antiretroviral therapy (cART) (n = 258), PLWH not on cART (n = 244) and HIV-negative individuals (n = 242). Diabetes, pre-DM and normoglycaemia were defined as haemoglobin A1C (HBA1c) > 6.5%, in the range 5.7-6.4% and < 5.7% respectively. We then prospectively followed up the PLWH for 12 months to assess rates of new-onset DM, and composite of new-onset DM and pre-DM. Multivariate logistic regression models were fitted to identify factors associated with dysglycaemia among PLWH.

RESULTS

The frequencies of DM among PLWH on cART, PLWH not on cART and HIV-negative individuals were 7.4%, 6.6% and 7.4% (P = 0.91), respectively, while pre-DM prevalence rates were 13.2%, 27.9% and 27.3%, respectively (P < 0.0001). Prevalent DM was independently associated with increasing age [adjusted odds ratio (95% confidence interval) (aOR, 95% CI) = 1.82 (1.20-2.77) for each 10-year rise], male sex [aOR = 2.64 (1.20-5.80)] and log(triglyceride/HDL cholesterol) [aOR = 8.54 (2.53-28.83)]. Prevalent pre-DM was independently associated with being on cART [aOR (95% CI) = 0.35 (0.18-0.69)]. There were a total of 12 cases of incident DM over 359.25 person-years, giving 33.4/1000 person-years of follow-up (PYFU) (95% CI: 18.1-56.8/1000), and an rate of incident pre-DM of 212.7/1000 PYFU (95 CI: 164.5-270.9/1000). The two independent factors associated with new-onset DM were having pre-DM at enrolment [aOR = 6.27 (1.89-20.81)] and being established on cART at enrolment [aOR = 12.02 (1.48-97.70)].

CONCLUSIONS

Incidence rates of pre-DM and overt DM among Ghanaian PLWH on cART ranks among the highest in the literature. There is an urgent need for routine screening and a multidisciplinary approach to cardiovascular disease risk reduction among PLWH to reduce morbidity and mortality from the detrimental effects of dysglycaemia.

Depression and HIV risk behaviors among adolescent girls and young women seeking family planning services in Western Kenya

We assessed prevalence of human immunodeficiency virus (HIV) risk behaviors and depressive symptoms among adolescent girls and young women (AGYW) aged 15-24 years attending four public family planning clinics in Western Kenya from January to June 2019. Moderate-to-severe depression (MSD) was defined as a Center for Epidemiologic Studies Depression Scale (CESD-10) score ≥10. Among 487 AGYW, the median age was 22 years (interquartile range 20-23), and 59 (12%) AGYW reported MSD. MSD was more prevalent among AGYW without a current partner (p = 0.001) and associated with HIV risk factors including partner ≥10 years older, recent transactional sex, forced sex, intimate partner violence, and alcohol use (each p ≤ 0.005). Thirty-four percent of AGYW with MSD had a high HIV risk score corresponding to 5 to 15 incident HIV cases per 100 person-years. Overlapping high prevalence of depression and HIV risk among AGYW underscores the need for integrated mental health and HIV services in family planning clinics.

The influence of father involvement during childhood on the emotional well-being of young adult offspring: a cross-sectional survey of students at a university in Botswana

Africa is witnessing rapid changes in family structure with noticeable absence and non-involvement of fathers in child-rearing. This study investigated the influence of father involvement in child care on the emotional well-being of young adult offspring in a cross-sectional survey of 375 students (age: M = 21.05 ± 1.94) at a university in Botswana. The Positive Affect and Negative Affect Scale and the Perception of Father Involvement Scale were used to assess emotional well-being and fathers’ involvement, respectively. T-tests, analyses of variance, and regression analyses were used to compute subpopulation differences and the influence of father involvement on emotional well-being. Only 38% of the students lived in a household with both parents, 70% indicated that they have a father figure (biological father, stepfather, uncles, and grandfathers), whereas, 30% of the students indicated that they had had no father figure. The female gender (β = .17, 95% CI = [.07, .27]), father availability (β = .23, 95% CI = [.06, .39]), and responsibility (β = .22, 95% CI = [.07, .27]) significantly and independently predicted emotional well-being. Significant differences were observed between biological father figures and no father figures and between other father figures and no father figure regarding emotional well-being. Father involvement, particularly the domains of availability and responsibility and having a father figure during childhood are associated with better emotional well-being in offspring.

HIV-Related Knowledge, Attitudes, and Behaviors among Grade 10 Girls and Boys in Mpumalanga and KwaZulu-Natal: Cross-Sectional Results

BACKGROUND

Young people in KwaZulu-Natal and Mpumalanga South Africa are at high risk of HIV and other sexually transmitted infections. Programs are needed to reach these young people and change their knowledge, attitudes, and behaviors.

OBJECTIVE

The objective of this study is to use cross-sectional data from grade 10 female and male learners in randomly assigned intervention and control schools to examine knowledge, attitudes, and sexual behaviors.

METHODS

Participants were in grade 10 in the 2018 school year and were attending schools randomly assigned to the intervention and control arms for implementation of the Department of Basic Education's adapted life orientation curriculum that included scripted lesson plans. The study took place in two high HIV prevalence provinces in South Africa. Participants completed self-administered tablet-based surveys and female participants provided a dried blood spot for HIV testing.

RESULTS

Results demonstrate that two-fifths to one-half of male learners reported being sexually experienced and a quarter (KwaZulu-Natal) to a third (Mpumalanga) of the female learners reported the same. A greater percentage of learners in Mpumalanga reported consistent condom use than learners in KwaZulu-Natal. HIV prevalence among female grade 10 learners in both provinces was about 6-7%. No notable differences are observed between intervention and control school learners on the knowledge, attitudes, and behavior outcomes.

CONCLUSION

The findings demonstrate the importance of developing HIV prevention programs for young people in high HIV prevalence provinces since these young people remain at high risk for HIV and other negative outcomes.

TRIAL REGISTRATION

This study has been registered at ClinicalTrials.gov. The trial registration number is: NCT04205721. The trial was retrospectively registered on December 18, 2019.

Is HIV index testing and partner notification safe for adolescent girls and young women in low- and middle-income countries?

INTRODUCTION

While HIV index testing and partner notification (PN) services have the potential to reach adolescent girls and young women (AGYW) aged 15 to 24 and their sexual partners in need of HIV testing services, the potential social harms have not yet been studied. This commentary highlights the risks of this approach, including intimate partner violence (IPV), stigma and discrimination, and outlines an urgent research agenda to fully understand the potential harms of PN for AGYW, calling for the development of mitigation strategies.

DISCUSSION

A substantial evidence base exists demonstrating the feasibility, acceptability and effectiveness of index testing and partner notification for adults aged 18 years and older in low- and middle-income countries (LMICs), particularly for men, and for adults who are married/cohabiting and referring a current sexual partner. AGYW who are most vulnerable to HIV infection in LMICs do not reflect these demographics. Instead, they are often in age-disparate partnerships, have limited negotiating power within relationships, experience high rates of violence and face economic challenges that necessitate transactional sex. PN services may be particularly difficult for adolescent girls under 18 who face restrictions on their decision making and are at increased risk of rape. Adolescent girls may also face coercion to notify partners due to unequal power dynamics in the provider-adolescent client relationship, as well as judgemental attitudes towards adolescent sexual activity among providers.

CONCLUSIONS

As index testing and PN with AGYW is already being rolled out in some LMICs, research is urgently needed to assess its feasibility and acceptability. Implementation science studies should assess the availability, accessibility, acceptability and quality of HIV PN services for AGYW. Qualitative studies and routine monitoring with age-disaggregated data are critical to capture potential social harms, PN preferences and support needs for AGYW aged 15 to 17, 18 to 20 and 21 to 24. To mitigate potential harms, PN methods should prioritize confidentiality and avoidance of adverse outcomes. Healthcare providers should be trained to conduct routine enquiry for IPV and provide first-line support. Support services for AGYW living with HIV and survivors of violence should be implemented alongside HIV PN.

Turning the Lens Toward Emotions: Considering HIV-Positive Adolescent Mothers in South Africa

The idea that adolescence, an important developmental stage in human life is embodied in emotions is not new. However, the association between adolescence, unplanned motherhood, and HIV infection, which often lead to unanticipated transitions, may influence a rethink toward understanding the emotional and mental states of adolescent mothers. Using a sociological lens, this article draws on the concept of “emotionality” and the importance of paying attention to “emotions” in offering analysis of the new reality, which HIV-positive adolescent mothers find themselves in South Africa. Specifically, this article shifts the social research focus from behavioral (e.g. sexual behaviors) research to exploring HIV-positive adolescent mothers’ feelings, thus paying heed to a subjective emotional landscape. Through an inductive thematic analysis, the emotional accounts and unifying themes extracted from 13 (10 HIV-positive adolescent mothers and three key informants) semistructured in-depth interviews present an understanding of the various needs of an emerging youthful generation living with HIV, rather than a narrow, conventional focus on costs, risks, and impending mortality.

Rates and Correlates of HIV Incidence in Namibia's Zambezi Region From 2014 to 2016: Sentinel, Community-Based Cohort Study

BACKGROUND

Direct measures of HIV incidence are needed to assess the population-level impact of prevention programs but are scarcely available in the subnational epidemic hotspots of sub-Saharan Africa. We created a sentinel HIV incidence cohort within a community-based program that provided home-based HIV testing to all residents of Namibia's Zambezi region, where approximately 24% of the adult population was estimated to be living with HIV.

OBJECTIVE

The aim of this study was to estimate HIV incidence, detect correlates of HIV acquisition, and assess the feasibility of the sentinel, community-based approach to HIV incidence surveillance in a subnational epidemic hotspot.

METHODS

Following the program's initial home-based testing (December 2014-July 2015), we purposefully selected 10 clusters of 60 to 70 households each and invited residents who were HIV negative and aged ≥15 years to participate in the cohort. Consenting participants completed behavioral interviews and a second HIV test approximately 1 year later (March-September 2016). We used Poisson models to calculate HIV incidence rates between baseline and follow-up and multivariable Cox proportional hazard models to assess the correlates of seroconversion.

RESULTS

Among 1742 HIV-negative participants, 1624 (93.23%) completed follow-up. We observed 26 seroconversions in 1954 person-years (PY) of follow-up, equating to an overall incidence rate of 1.33 per 100 PY (95% CI 0.91-1.95). Among women, the incidence was 1.55 per 100 PY (95% CI 1.12-2.17) and significantly higher among those aged 15 to 24 years and residing in rural areas (adjusted hazard ratio [aHR] 4.26, 95% CI 1.39-13.13; P=.01), residing in the Ngweze suburb of Katima Mulilo city (aHR 2.34, 95% CI 1.25-4.40; P=.01), who had no prior HIV testing in the year before cohort enrollment (aHR 3.38, 95% CI 1.04-10.95; P=.05), and who had engaged in transactional sex (aHR 17.64, 95% CI 2.88-108.14; P=.02). Among men, HIV incidence was 1.05 per 100 PY (95% CI 0.54-2.31) and significantly higher among those aged 40 to 44 years (aHR 13.04, 95% CI 5.98-28.41; P<.001) and had sought HIV testing outside the study between baseline and follow-up (aHR 8.28, 95% CI 1.39-49.38; P=.02). No seroconversions occurred among persons with HIV-positive partners on antiretroviral treatment.

CONCLUSIONS

Nearly three decades into Namibia's generalized HIV epidemic, these are the first estimates of HIV incidence for its highest prevalence region. By creating a sentinel incidence cohort from the infrastructure of an existing community-based testing program, we were able to characterize current transmission patterns, corroborate known risk factors for HIV acquisition, and provide insight into the efficacy of prevention interventions in a subnational epidemic hotspot. This study demonstrates an efficient and scalable framework for longitudinal HIV incidence surveillance that can be implemented in diverse sentinel sites and populations.

Vulnerability profiles and prevalence of HIV and other sexually transmitted infections among adolescent girls and young women in Ethiopia: A latent class analysis

Background

Adolescent girls and young women (AGYW) aged 15–24 years have among the highest risk for HIV and other sexually transmitted infections (STI) across sub-Saharan Africa. A latent class analysis (LCA) was conducted to identify intersecting social- and structural-level determinants of HIV/STI acquisition among AGYW in Ethiopia.

Methods

AGYW were recruited from venues using time-location sampling, completing an interviewer-administered behavioral survey and biological testing for HIV, syphilis, and chlamydia. LCA was used to identify distinct groups, defined by social- and structural-level determinants of HIV/STI risk, among AGYW. Prevalence ratios (PR) and 95% confidence intervals (CI) compared differences in HIV/STI prevalence by group.

Results

A total of 1,501 AGYW were enrolled across Addis Ababa (March–May 2018) and Gambella (June–July 2019). We identified three patterns of vulnerability defined by schooling status, migration history, food insecurity, orphan status, social support, and employment. We labeled these groups as “highly vulnerable” (representing ~21% of the population), “stable, out-of-school, migrated” (~42%), and “stable, in-school, never migrated” (~37%). STI prevalence was nearly two-fold higher among AGYW in the “highly vulnerable” group compared to AGYW in the “stable, in-school, never migrated” group (PR 1.93; 95% CI 1.33, 2.80).

Conclusions

Characterizing patterns of vulnerability among AGYW that reflect higher-level social and structural factors can help facilitate early identification of AGYW at the highest risk of HIV/STI acquisition, thus differentiating groups of AGYW who may most benefit from targeted HIV prevention interventions during adolescence and early adulthood.

Characteristics Associated With Human Immunodeficiency Virus Transmission Networks Involving Adolescent Girls and Young Women in Human Immunodeficiency Virus Prevention Trials Network 068 Study

We combined behavioral survey data from the human immunodeficiency virus (HIV) Prevention Trials Network 068 study with phylogenetic information to determine if cluster membership was associated with characteristics of young women and their partners. Clusters were more likely to involve young women from specific villages and schools, indicating some localized transmission.Supplemental digital content is available in the text.

Depression and Incident HIV in Adolescent Girls and Young Women in HIV Prevention Trials Network 068: Targets for Prevention and Mediating Factors

The human immunodeficiency virus (HIV) epidemic among adolescent girls and young women (AGYW) in sub-Saharan Africa is a critical public health problem. We assessed whether depressive symptoms in AGYW were longitudinally associated with incident HIV, and identified potential social and behavioral mediators. Data came from a randomized trial of a cash transfer conditional on school attendance among AGYW (ages 13-21 years) in rural Mpumalanga Province, South Africa, during 2011-2017. We estimated the relationship between depressive symptoms and cumulative HIV incidence using a linear probability model, and we assessed mediation using inverse odds ratio weighting. Inference was calculated using the nonparametric bootstrap. AGYW with depressive symptoms had higher cumulative incidence of HIV compared with those without (risk difference = 3.5, 95% confidence interval (CI): 0.1, 7.0). The strongest individual mediators of this association were parental monitoring and involvement (indirect effect = 1.6, 95% CI: 0.0, 3.3) and reporting a partner would hit her if she asked him to wear a condom (indirect effect = 1.5, 95% CI: -0.3, 3.3). All mediators jointly explained two-thirds (indirect effect = 2.4, 95% CI: 0.2, 4.5) of the association between depressive symptoms and HIV incidence. Interventions addressing mental health might reduce risk of acquiring HIV among AGYW.

HIV vulnerability among adolescent girls and young women: a multi-country latent class analysis approach

OBJECTIVES

To stem the HIV epidemic among adolescent girls and young women (AGYW, 15-24 years), prevention programs need to reach AGYW who are most at risk. We examine whether individual- and household-level factors could be used to define HIV vulnerability for AGYW.

METHODS

We surveyed out-of-school AGYW in urban and peri-urban Kenya (N = 1014), in urban Zambia (N = 846), and in rural Malawi (N = 1654) from October 2016 to 2017. LCA identified classes based on respondent characteristics, attitudes and knowledge, and household characteristics. Multilevel regressions examined associations between class membership and HIV-related health outcomes.

RESULTS

We identified two latent classes-high and low HIV vulnerability profiles-among AGYW in each country; 32% of the sample in Kenya, 53% in Malawi, and 51% in Zambia belonged to the high vulnerability group. As compared to AGYW with a low-vulnerability profile, AGYW with a high-vulnerability profile had significantly higher odds of HIV-related outcomes (e.g., very early sexual debut, transactional sex, sexual violence from partners).

CONCLUSIONS

Out-of-school AGYW had differential vulnerability to HIV. Interventions should focus on reaching AGYW in the high HIV vulnerability profiles.

Assessing the Impact of a Small-Group Behavioral Intervention on Sexual Behaviors Among Adolescent Girls and Young Women in Lilongwe Malawi: A Quasi-Experimental Cohort Study

Adolescent girls and young women (AGYW) in sub-Saharan Africa are at high risk of many adverse sexual and reproductive health outcomes. Small-group interventions addressing underlying vulnerabilities may influence risky sexual behaviors associated with these adverse outcomes. Girl Power-Malawi assessed whether a facilitator-led, curriculum-driven small-group behavioral intervention impacted risky sexual behaviors among AGYW in Lilongwe, Malawi. Four Health Centers were selected; two were randomly assigned to provide the intervention. Two-hundred fifty AGYW 15-24 years old were enrolled in each clinic (N = 1000 total), followed for 1 year, and interviewed at baseline and endline. At both time points participants reported on two behaviors in the last month (vaginal sex and ≥ 2 sexual partners) and two behaviors in the last year (age-disparate relationships and transactional relationships). In intervention clinics, there were no declines in risk behaviors between baseline and endline. Endline behaviors were not less risky in intervention clinics than control clinics. This intervention did not have a positive effect on four risk behaviors over a 1-year period.

Safety and continued use of the levonorgestrel intrauterine system as compared with the copper intrauterine device among women living with HIV in South Africa: A randomized controlled trial

BACKGROUND

Women living with HIV (WLHIV) have lower rates of contraceptive use than noninfected peers, yet concerns regarding contraceptive efficacy and interaction with antiretroviral therapy (ART) complicate counseling. Hormonal contraceptives may increase genital tract HIV viral load (gVL) and sexual transmission risk to male partners. We compared gVL, plasma VL (pVL), and intrauterine contraceptive (IUC) continuation between the levonorgestrel intrauterine system (LNG-IUS) and copper intrauterine device (C-IUD) in Cape Town, South Africa.

METHODS AND FINDINGS

In this double-masked, randomized controlled noninferiority trial, eligible WLHIV were ages 18-40, not pregnant or desiring pregnancy within 30 months, screened and treated (as indicated) for reproductive tract infections (RTIs) within 1 month of enrollment, and virologically suppressed using ART or above treatment threshold at enrollment (non-ART). Between October 2013, and December 2016, we randomized consenting women within ART groups, using 1:1 permuted block randomization stratified by ART use, age (18-23, 24-31, 32-40), and recent injectable progestin contraceptive (IPC) exposure, and provided the allocated IUC. At all visits, participants provided specimens for gVL (primary outcome), pVL, RTI, and pregnancy testing. We assessed gVL and pVL across 6 and 24 months controlling for enrollment measures, ART group, age, and RTI using generalized estimating equation and generalized linear models (non-ART group pVL and hemoglobin) in as-treated analyses. We measured IUC discontinuation rates with Kaplan-Meier estimates and Cox proportional hazards models. We enrolled 71 non-ART (36 LNG-IUS, 31 C-IUD; 2 declined and 2 were ineligible) and 134 ART-using (65 LNG-IUS, 67 C-IUD; 1 declined and 1 could not complete IUC insertion) women. Participant median age was 31 years, and 95% had 1 or more prior pregnancies. Proportions of women with detectable gVL were not significantly different comparing LNG-IUS to C-IUD across 6 (adjusted odds ratio [AOR]: 0.78, 95% confidence interval [CI] 0.44-1.38, p = 0.39) and 24 months (AOR: 1.03, 95% CI: 0.68-1.57, p = 0.88). Among ART users, proportions with detectable pVL were not significantly different at 6 (AOR = 0.83, 95% CI 0.37-1.86, p = 0.65) and 24 months (AOR = 0.94, 95% CI 0.49-1.81, p = 0.85), whereas among non-ART women, mean pVL was not significantly different at 6 months (-0.10 log10 copies/mL, 95% CI -0.29 to 0.10, p = 0.50) between LNG-IUS and C-IUD users. IUC continuation was 78% overall; C-IUD users experienced significantly higher expulsion (8% versus 1%, p = 0.02) and elective discontinuation (adjusted hazard ratio: 8.75, 95% CI 3.08-24.8, p < 0.001) rates. Sensitivity analysis adjusted for differential IUC discontinuation found similar gVL results. There were 39 serious adverse events (SAEs); SAEs believed to be directly related to IUC use (n = 7) comprised 3 pelvic inflammatory disease (PID) cases and 4 pregnancies with IUC in place with no discernible trend by IUC arm. Mean hemoglobin change was significantly higher among LNG-IUS users across 6 (0.57 g/dL, 95% CI 0.24-0.90; p < 0.001) and 24 months (0.71 g/dL, 95% CI 0.47-0.95; p < 0.001). Limitations included not achieving non-ART group sample size following change in ART treatment guidelines and truncated 24 months' outcome data, as 17 women were not yet eligible for their 24-month visit at study closure. Also, a change in VL assay during the study may have caused some discrepancy in VL values because of different limits of detection.

CONCLUSIONS

In this study, we found that the LNG-IUS did not increase gVL or pVL and had low levels of contraceptive failure and associated PID compared with the C-IUD among WLHIV. LNG-IUS users were significantly more likely to continue IUC use and had higher hemoglobin levels over time. The LNG-IUS appears to be a safe contraceptive with regard to HIV disease and may be a highly acceptable option for WLHIV.

TRIAL REGISTRATION

ClinicalTrials.gov NCT01721798.

Inflammatory and antimicrobial properties differ between vaginal Lactobacillus isolates from South African women with non-optimal versus optimal microbiota

Female genital tract (FGT) inflammation increases HIV infection susceptibility. Non-optimal cervicovaginal microbiota, characterized by depletion of Lactobacillus species and increased bacterial diversity, is associated with increased FGT cytokine production. Lactobacillus species may protect against HIV partly by reducing FGT inflammation. We isolated 80 lactobacilli from South African women with non-optimal (Nugent 4–10; n = 18) and optimal microbiota (Nugent 0–3; n = 14). Cytokine production by vaginal epithelial cells in response to lactobacilli in the presence and absence of Gardnerella vaginalis was measured using Luminex. Adhesion to vaginal epithelial cells, pH, D/L-lactate production and lactate dehydrogenase relative abundance were assessed. Lactobacilli from women with non-optimal produced less lactic acid and induced greater inflammatory cytokine production than those from women with optimal microbiota, with IL-6, IL-8, IL-1α, IL-1β and MIP-1α/β production significantly elevated. Overall, lactobacilli suppressed IL-6 (adjusted p < 0.001) and IL-8 (adjusted p = 0.0170) responses to G. vaginalis. Cytokine responses to the lactobacilli were inversely associated with lactobacilli adhesion to epithelial cells and D-lactate dehydrogenase relative abundance. Thus, while cervicovaginal lactobacilli reduced the production of the majority of inflammatory cytokines in response to G. vaginalis, isolates from women with non-optimal microbiota were more inflammatory and produced less lactic acid than isolates from women with optimal microbiota.

The effects of the integration of an economic strengthening and HIV prevention education programme on the prevalence of sexually transmitted infections and savings behaviours among adolescents: a full-factorial randomised controlled trial in South Africa

Background

Multisectoral approaches are thought necessary to prevent HIV among adolescents. We examined whether an economic strengthening (ES) and an HIV-prevention education intervention improved outcomes when combined versus separately.

Methods

We conducted a full-factorial randomised controlled study to randomise participants into all possible intervention groups based on the two interventions: economic strengthening only (ES-only), HIV-prevention only (HIV-only), both interventions combined (ES+HIV) and no intervention (control). We measured sexually transmitted infections (STIs), self-reported economic and sexual behaviours/knowledge, and pregnancy at a pre-intervention and two post-intervention assessments. Eligible participants were adolescents 14 to 17 years old from a programme supporting vulnerable families in Gauteng Province, South Africa. We estimated intervention effects using repeated measures, generalised linear mixed models.

Results

A total of 1773 adolescents participated (57% female). ES+HIV adolescents had the lowest STI prevalence at first endline; however, the comparison with the control was not significant (OR 0.62, 95% CI 0.27 to 1.41). ES-only or HIV-only groups were not significantly better than the control on STI prevalence (OR 1.53, 95% CI 0.73 to 3.20 and OR 1.47, 95% CI 0.69 to 3.12, respectively). STI prevalence became more similar among the groups at second endline.ES-only adolescents were more likely to participate in savings groups (p=0.004) and plan to save for education (p=0.001) versus the control. ES+HIV adolescents were more likely to plan to save for education versus the control (p=0.001) and HIV-only groups (p=0.002) but did not differ significantly from the ES-only group (p=0.803). The ES+HIV intervention's effect on HIV knowledge was significant compared with the control (p=0.03) and ES-only groups (p<0.001), but not when compared with the HIV-only group (p=0.091). Effects on pregnancy, sexual behaviours or other economic behaviours were not significant.

Conclusions

We could not confirm the ES and HIV interventions, separately or combined, were effective to reduce STI prevalence. Evaluations of multicomponent interventions should use full-factorial designs to fully assess effects.

Trial registration number

NCT02888678.

Application of a long short-term memory neural network: a burgeoning method of deep learning in forecasting HIV incidence in Guangxi, China

Guangxi, a province in southwestern China, has the second highest reported number of HIV/AIDS cases in China. This study aimed to develop an accurate and effective model to describe the tendency of HIV and to predict its incidence in Guangxi. HIV incidence data of Guangxi from 2005 to 2016 were obtained from the database of the Chinese Center for Disease Control and Prevention. Long short-term memory (LSTM) neural network models, autoregressive integrated moving average (ARIMA) models, generalised regression neural network (GRNN) models and exponential smoothing (ES) were used to fit the incidence data. Data from 2015 and 2016 were used to validate the most suitable models. The model performances were evaluated by evaluating metrics, including mean square error (MSE), root mean square error, mean absolute error and mean absolute percentage error. The LSTM model had the lowest MSE when the N value (time step) was 12. The most appropriate ARIMA models for incidence in 2015 and 2016 were ARIMA (1, 1, 2) (0, 1, 2)₁₂ and ARIMA (2, 1, 0) (1, 1, 2)₁₂, respectively. The accuracy of GRNN and ES models in forecasting HIV incidence in Guangxi was relatively poor. Four performance metrics of the LSTM model were all lower than the ARIMA, GRNN and ES models. The LSTM model was more effective than other time-series models and is important for the monitoring and control of local HIV epidemics.

Perspectives from Young South African and Zimbabwean Women on Attributes of Four (Placebo) Vaginal Microbicide Delivery Forms

Introduction

Incorporating end-user input into the design of new vaginal microbicides for women is key to optimizing their uptake, consistent use, and, ultimately, success in combatting the heterosexual HIV epidemic.

Methods

The Quatro Study assessed four placebo forms of vaginally inserted HIV-microbicides among young microbicide-naïve African women: on-demand film, insert and gel, and monthly ring. Participants randomly used each product for 1 month and provided product satisfaction ratings (1–5 scale), and opinions on product attributes and potential alternative designs. Qualitative data were collected through focus group discussions at study exit. Multivariable associations between attribute opinions and overall product rating were examined using Poisson regression models with robust standard errors to assess the attributes most influential to satisfaction.

Results

Overall opinions of products and their individual attributes were generally positive; all products were rated either 4 or a 5 by ≥ 50% of participants. Attributes related to ease of use and interference with normal activities were the most salient predictors of satisfaction. Preferences for duration of use tended toward relatively shorter use periods for the ring (i.e., 1–3 months vs. 12 months) and for coitally independent dosing for the on-demand products.

Conclusions

How well a product fit in with participants’ lifestyles was important to their overall satisfaction. For on-demand products, greater flexibility around timing of use was desired, to avoid coital dependency of the dosing.

Electronic supplementary material

The online version of this article (10.1007/s10461-019-02576-8) contains supplementary material, which is available to authorized users.

Spatial Distribution of HIV Prevalence among Young People in Mozambique

Mozambique has a high burden of HIV and is currently ranked sixth worldwide for adult prevalence. In Mozambique, HIV prevalence is not uniformly distributed geographically and throughout the population. We investigated the spatial distribution of HIV infection among adolescents and young people in Mozambique using the 2009 AIDS Indicator Survey (AIS). Generalized geoadditive modeling, combining kriging and additive modeling, was used to study the geographical variability of HIV risk among young people. The nonlinear spatial effect was assessed through radial basis splines. The estimation process was done using two-stage iterative penalized quasi-likelihood within the framework of a mixed-effects model. Our estimation procedure is an extension of the approach by Vandendijck et al., estimating the range (spatial decay) parameter in a binary context. The results revealed the presence of spatial patterns of HIV infection. After controlling for important covariates, the results showed a greater burden of HIV/AIDS in the central and northern regions of the country. Several socio-demographic, biological, and behavioral factors were found to be significantly associated with HIV infection among young people. The findings are important, as they can help health officials and policy makers to design targeted interventions for responding to the HIV epidemic.

Evaluating DREAMS HIV prevention interventions targeting adolescent girls and young women in high HIV prevalence districts in South Africa: protocol for a cross-sectional study

BACKGROUND

Young women in sub-Saharan Africa remain at the epicentre of the HIV epidemic, with surveillance data indicating persistent high levels of HIV incidence. In South Africa, adolescent girls and young women (AGYW) account for a quarter of all new HIV infections. Determined, Resilient, Empowered, AIDS-free, Mentored and Safe (DREAMS) is a strategy introduced by the United States President's Emergency Plan for AIDS Relief (PEPFAR) aimed at reducing HIV incidence among AGYW in 10 countries in sub-Saharan Africa by 25% in the programme's first year, and by 40% in the second year. This study will assess the change in HIV incidence and reduction in risk associated behaviours that can be attributed to the DREAMS initiative in South Africa, using a population-based cross-sectional survey.

METHODS

Data will be collected from a household-based representative sample of AGYW (between the ages 12-24 years) in four high prevalence districts (more than 10% of the population have HIV in these districts) in South Africa in which DREAMS has been implemented. A stratified cluster-based sampling approach will be used to select eligible participants for a cross-sectional survey with 18,500, to be conducted over 2017/2018. A questionnaire will be administered containing questions on sexual risk behaviour, selected academic and developmental milestones, prevalence of gender based violence, whilst examining exposure to DREAMS programmes. Biological samples, including two micro-containers of blood and self-collected vulvovaginal swab samples, are collected in each survey to test for HIV infection, HIV incidence, sexually transmitted infections (STIs) and pregnancy. This study will measure trends in population level HIV incidence using the Limiting antigen (LAg) Avidity Enzyme Immuno-Assay (EIA) and monitor changes in HIV incidence.

DISCUSSION

Ending the HIV/AIDS pandemic by 2030 requires the continual monitoring and evaluation of prevention programmes, with the aim of optimising efforts and ensuring the achievement of epidemic control. This study will determine the impact DREAMS interventions have had on HIV incidence among AGYW in a 'real world, non-trial setting'.

Social Networks Moderate the Syndemic Effect of Psychosocial and Structural Factors on HIV Risk Among Young Black Transgender Women and Men who have Sex with Men

The interaction between the cumulative effect of psychosocial and structural factors (i.e. syndemic effect) and social networks among young Black transgender women and men who have sex with men (YBTM) remains understudied. A representative cohort of 16-29 year-old YBTM (n = 618) was assessed for syndemic factors [i.e. substance use; community violence; depression; poverty; justice system involvement (JSI)], social network characteristics, condomless anal sex (CAS), group sex (GS), and HIV-infection. The syndemic index significantly increased the odds of CAS, GS, and HIV-infection, and these effects were moderated by network characteristics. Network JSI buffered the effect on CAS, romantic network members buffered the effect on GS, and network age and proportion of family network members buffered the effect on HIV-infection. The proportion of friend network members augmented the effect on GS and HIV-infection. Future research to prevent HIV among YBTM should consider social network approaches that target both structural and psychosocial syndemic factors.

Large benefits to youth-focused HIV treatment-as-prevention efforts in generalized heterosexual populations: An agent-based simulation model

Predominantly heterosexual HIV-1 epidemics like those in sub-Saharan Africa continue to have high HIV incidence in young people. We used a stochastic, agent-based model for age-disparate networks to test the hypothesis that focusing uptake and retention of ART among youth could enhance the efficiency of treatment as prevention (TasP) campaigns. We used the model to identify strategies that reduce incidence to negligible levels (i.e., < 0.1 cases/100 person-years) 20-25 years after initiation of a targeted TasP campaign. The model was parameterized using behavioral, demographic, and clinical data from published papers and national reports. To keep a focus on the underlying age effects we model a generalized heterosexual population with average risks (i.e., no MSM, no PWIDs, no sex workers) and no entry of HIV+ people from other regions. The model assumes that most people (default 95%, range in variant simulations 60-95%) are "linkable"; i.e., could get linked to effective care given sufficient resources. To simplify the accounting, we assume a rapid jump in the number of people receiving treatment at the start of the TasP campaign, followed by a 2% annual increase that continues until all linkable HIV+ people have been treated. Under historical scenarios of CD4-based targeted ART allocation and current policies of untargeted (random) ART allocation, our model predicts that viral replication would need to be suppressed in 60-85% of infected people at the start of the TasP campaign to drive incidence to negligible levels. Under age-based strategies, by contrast, this percentage dropped by 18-54%, depending on the strength of the epidemic and the age target. For our baseline model, targeting those under age 30 halved the number of people who need to be treated. Age-based targeting also minimized total and time-discounted AIDS deaths over 25 years. Age-based targeting yielded benefits without being highly exclusive; in a model in which 60% of infected people were treated, ~87% and ~58% of those initiating therapy during a campaign targeting those <25 and <30 years, respectively, fell outside the target group. Sensitivity analyses revealed that youth-focused TasP is beneficial due to age-related risk factors (e.g. shorter relationship durations), and an age-specific herd immunity (ASHI) effect that protects uninfected adolescents entering the sexually active population. As testing rates increase in response to UNAIDS 90-90-90 goals, efforts to link all young people to care and treatment could contribute enormously to ending the HIV epidemic.

Multilevel Measures of Education and Pathways to Incident Herpes Simplex Virus Type 2 in Adolescent Girls and Young Women in South Africa

PURPOSE

Schooling is associated with a lower risk of Herpes simplex virus type 2 (HSV-2) in adolescent girls and young women, but there is little understanding of the pathways underlying this relationship.

METHODS

We used data from adolescent girls and young women in South Africa enrolled in the HIV Prevention Trials Network 068 study. We tested a structural equation model where individual household and community education measures were associated directly and indirectly with incident HSV-2 through HIV knowledge, future aspirations, age-disparate partnerships, sex in the last 12 months, and condomless sex.

RESULTS

Community, household, and individual measures of schooling were all associated with incident HSV-2 infection through mediated pathways that increased the likelihood of having sex. Low school attendance (<80% of school days) increased the likelihood of having sex through increased age-disparate partnerships and reduced future aspirations. Fewer community years of education increased the likelihood of having sex through increased age-disparate partnerships. Parental education level was indirectly associated with HSV-2 overall, although we could not identify the individual pathways that were responsible for this association.

CONCLUSIONS

Community and individual schooling interventions may reduce the risk of HSV-2 infection by influencing the likelihood of having sex, partner age, and future aspirations.

HIV prevalence in South Africa through gender and racial lenses: results from the 2012 population-based national household survey

Background

In South Africa, persistence of the HIV epidemic and associated gender and racial disparities is a major concern after more than 20 years of democratic dispensation and efforts to create a more healthy and equal society. This paper profiles HIV prevalence and related factors among Black African men and women compared to other race groups in South Africa using the 2012 population-based national household HIV survey.

Methods

This secondary data analysis was based on the 2012 population-based nationally representative multi-stage stratified cluster random household sample. Bivariate and multiple logistic regression analysis were used to assess the relationship between HIV prevalence and associated factors by gender and racial profile.

Results

Overall HIV prevalence was significantly higher (p < 0.001) among both Black African males (16.6%; 95% CI: 15.0–18.4) and females (24.1%; 95% CI: 22.4–26.0) compared to their counterparts from other races. Among Black African males, increased risk of HIV was significantly associated with age group 25–49 years and those 50 years and older compared with young males 15–25 years. Among all males, reported condom use at last sex was significantly associated with increased risk of HIV. High socio-economic status (SES) and perceived risk of HIV were associated with a decreased risk of HIV. Among female condom use at last sex and ever testing for HIV was associated with increased prevalence of HIV only among Black African females. Lower prevalence of HIV was associated with marriage, tertiary education, high SES, having a partner five years younger, perceived risk of HIV, and awareness of HIV status among Black African females.

Conclusion

Gender and racial disparities rooted in structural and contextual inequalities remain important factors for the maintenance of the generalized HIV epidemic in the country. HIV prevention interventions need to cut across all strata of society but also target risk factors salient for specific groups. Alleviating vulnerability to HIV along gender and racial lines should also be viewed as part of a broader public health strategy.

Brief Report: Age-Disparate Relationships and HIV Prevalence Among Never Married Women in Rakai, Uganda

BACKGROUND

Age-disparate relationships are associated with increased HIV prevalence. We determined whether the frequency of age-disparate relationships in never married women changed over time and whether they are associated with HIV prevalence in Rakai, Uganda.

METHODS

A total of 10,061 never married women, aged 15-49 years, in the Rakai Community Cohort Study provided information on the age of their male sexual partners from 1997 to 2013. Logistic regression was used to assess trends in age-disparate relationships (≥5 years) between never married women and their male partners. Log-binomial regression was used to estimate adjusted prevalence ratios (adjPR) of HIV prevalence associated with age-disparate relationships.

RESULTS

Two thousand nine hundred ninety-nine women (30%) had a male partner ≥5 years older, which remained stable over time. The prevalence of HIV among women in age-disparate relationships was 14%, 10% for women in relationships with men 0-4 years older (adjPR 1.36, 95% confidence interval: 1.22 to 1.53) not controlling women's age; however, after age adjustment, the impact of age-disparate relationships on HIV prevalence was attenuated. Age-disparate relationships were associated with increased HIV prevalence among women aged 15-17 years (adjPR 1.83, 95% confidence interval: 1.10 to 3.17), but not in other age groups.

CONCLUSIONS

The frequency of age-disparate relationships among never married women was unchanged over a 15-year period in Rakai, Uganda. Age-disparate relationships were associated with increased HIV prevalence among adolescents aged 15-17 years, but not older women.

Strength-based interventions for HIV prevention and sexual risk reduction among girls and young women: A resilience-focused systematic review

Despite significant public health efforts, girls and young women still face gender-specific barriers to achieving optimal physical and mental health. Public health interventions have historically addressed the health needs of girls and young women using risk-focused, or deficit-based, approaches. Emerging research in public health and prevention provides an alternative approach, focusing instead on strengths and resilience. However, evidence remains limited regarding strength-based interventions to improve health outcomes for young women, including outcomes within the critically important areas of sexual and reproductive health. To address this gap in evidence, this review analyses the evidence base for intervention research using a strength-based resilience-focused approach to reduce HIV and sexual risk for girls and young women globally. A systematic search of published literature identified 35 articles, representing 25 unique interventions (N = 25). These interventions employed in-person, and other engaging methods, to deliver intervention content aimed at fostering resilience and changing sexual risk behaviours. Results also highlight gaps in measurement and study design, as well as variation in geographic setting and level of behaviour change. This review draws attention to the potential growth of strength-based intervention research, and offers future directions for developing and expanding research on resilience as an urgent global public health priority.

Correlates of HIV infection in adolescent girls and young women in Lesotho: results from a population-based survey

BACKGROUND

HIV acquisition remains high among adolescent girls and young women (AGYW, aged 15-24 years) in sub-Saharan Africa. We aimed to estimate prevalence and incidence of HIV in AGYW and to identify correlates of HIV infection by using data from the Lesotho Population-based HIV Impact Assessment (LePHIA).

METHODS

LePHIA was a nationally representative survey of adults and children based on a multistage cluster sampling method with random selection of enumeration areas and households. All adults aged 15 years and older who had slept in the household the night before were eligible for participation; participants completed an interview and HIV testing. We estimated incidence with the HIV-1 limiting antigen avidity enzyme immunoassay combined with viral load and examined the association between demographic and behavioural variables (including characteristics of cohabitating mothers and sexual partners, when available) and prevalence and incidence among AGYW using logistic regression, incorporating survey weights.

FINDINGS

We interviewed 8824 households, including 2358 AGYW who were tested for HIV infection. Weighted HIV prevalence was 11·1% (95% CI 9·7-12·5) in the overall population (273 of 2358 AGYW), 5·7% (4·1-7·2) in adolescent girls aged 15-19 years (64 of 1156), and 16·7% (14·4-19·0) in women aged 20-24 years (209 of 1212). Annualised HIV incidence was 1·8% (0·8-2·8). Correlates of prevalent infection include reporting a history of anal sex (adjusted odds ratio [aOR] 3·08, 1·11-8·57), having lived outside Lesotho in the past year (1·86, 1·01-3·42), having a partner suspected or known to be HIV positive (11·7, 6·0-22·5), and having two or more lifetime sexual partners (1·84, 1·21-2·78, for 2-3 lifetime sexual partners; 2·44, 1·45-4·08, for ≥4 lifetime sexual partners). For the 570 AGYW living with their mothers, maternal education was negatively associated with HIV prevalence in their daughters (aOR 0·36, 0·15-0·82, per increase in level attended). For AGYW with a cohabitating partner, the factors associated with AGYW infection were partner age (OR 4·54, 1·30-15·80, for partners aged 35-49 years, although the OR was no longer significant when adjusted for HIV status of partner), HIV status (aOR 11·22, 4·05-31·05), lack of viral load suppression (OR 0·16, 0·04-0·66), and partner employment in the past year (aOR 3·41, 1·12-10·42).

INTERPRETATION

The findings confirm the importance of improving the treatment cascade in male partners and targeting preventive interventions to AGYW who are at increased risk. A regional approach to prevention could mitigate the effect of migration on transnational spread of HIV.

FUNDING

President's Emergency Plan for AIDS Relief through the Centers for Disease Control and Prevention.

ART Adherence Among Malawian Youth Enrolled in Teen Clubs: A Retrospective Chart Review

To improve outcomes among HIV-positive adolescents, the Malawi Ministry of Health is supporting scale-up of "Teen Clubs," a facility-based antiretroviral treatment (ART) delivery model. Teen Clubs are monthly ART clinics for adolescents (10-19 years old) that provide clinical services and peer psychosocial support. This paper assesses ART adherence among Teen Club attendees in Malawi. We performed a retrospective analysis of medical records and Teen Club attendance data on 589 HIV-positive adolescents at 16 Partners in Hope (PIH)-Extending Quality Improvement for HIV/AIDS in Malawi (EQUIP) supported facilities across Malawi, from January to June of 2017, who attended at least two Teen Club sessions. Multi-level logistic regression models were used to examine the role of gender and age on optimal ART adherence (≥ 95% based on pill count) among HIV-positive adolescents enrolled in Teen Clubs. The median age of adolescents in this sample was 14 years, and 47% were male. Older adolescent males (15-19 years) were 64% more likely to achieve ≥ 95% ART adherence (aOR 1.64, 95% CI 1.16-2.31, p < 0.01) compared to younger (10-14 years) males. The effect of age on adherence was smaller and not significant among females (aOR 1.36, 95% CI 0.96-1.94, p = 0.08). In the full model including males and females, older adolescence was associated with higher odds of optimal adherence (aOR 1.48, 95% CI 1.16-1.90, p < 0.01). These results reinforce the need for age-specialized programming for adolescents, and future research should evaluate this in achieving optimal ART adherence.

A Systematic Review and Meta-analysis of Antiretroviral Therapy (ART) Adherence Interventions for Women Living with HIV

A systematic review and meta-analysis was conducted to determine the efficacy of women-focused ART adherence interventions. Included studies (a) reported on a behavioral ART adherence intervention for cis-women living with HIV, (b) measured ART adherence as an outcome, and (c) employed a randomized controlled trial design. Thirteen studies were included in the meta-analysis. Overall, interventions significantly improved ART adherence compared to control conditions (random-effects d = 0.82, 95% CI [0.18, 1.45], p = 0.01), however, this was largely driven by two studies that had effect sizes greater than 3 standard errors above the mean effect size. Key moderators were location, recruitment method, group-based intervention, and alteration of the healthcare system. Innovative behavioral interventions that focus on young women and adolescents, target the critical periods of pregnancy and postpartum and test the integration of multiple levels of intervention to create lasting effects on ART adherence are needed.

Contextual drivers of HIV risk among young African women

INTRODUCTION

Significant progress has been made in the African HIV pandemic; however, the pace of incidence decline has slowed or stalled in many East and Southern African countries, especially among young women. This stall is worrying because many countries have burgeoning youth populations. There is an important window of opportunity to halt the epidemic as well as the potential for millions more infections if primary prevention efforts are not strengthened.

DISCUSSION

Many hyper-endemic settings have been exposed to numerous interventions; however, HIV incidence among young women has remained high. In this paper, we characterize the intervention context and examine how it can be strategically utilized to maximize HIV prevention interventions among young women. We begin by examining how contextual dynamics drive HIV risk. We illustrate how epidemiological contexts, gendered normative and economic contexts, and environmental contexts work synergistically to make young women especially vulnerable to HIV infection. We then examine how these contexts can undermine HIV prevention interventions. Finally, we discuss the importance of fully mapping out the intervention context to enhance the effectiveness of HIV prevention interventions.

CONCLUSIONS

Understanding an intervention context, and how its features work together to amplify young women's risk in hyper-endemic settings can contribute to sustained momentum in reducing HIV incidence among young women and help to limit the reach of the HIV pandemic into new generations of Africans.

'This is mine, this is for me': preexposure prophylaxis as a source of resilience among women in Eswatini

OBJECTIVE

To understand the relationship between HIV preexposure prophylaxis (PrEP) and resilience among Emaswati women.

DESIGN

A qualitative study using semistructured in-depth interviews.

METHODS

We interviewed 24 women who recently initiated PrEP at one of six public-sector primary-care clinics participating in a government demonstration project for PrEP for the general population, as well as 30 PrEP stakeholders from HIV policy, implementation and donor sectors.

RESULTS

PrEP clients and stakeholders described an environment marked by high HIV risk. In this context, clients felt PrEP enhanced their resilience through feelings of protection, control over HIV acquisition, choice in relation to when to take PrEP, sexual pleasure and relief from the fear and consequences of HIV infection. Those in serodiscordant relationships described improved partner communication and a shared sense of responsibility for HIV prevention. Both PrEP clients and stakeholders asserted that PrEP marketing and communication should be Emaswati-led and community-owned.

CONCLUSION

PrEP helps women in Eswatini envision longer, healthier and more fulfilled lives. PrEP enhances resilience through several pathways, including self-efficacy, choice, control over HIV infection and relief from the fear of HIV infection. Social marketing and information campaigns should not only focus on PrEP as an HIV-prevention method but also emphasize how PrEP has expanded choice, enhanced control and facilitated sexual enjoyment among PrEP clients.

Characterising unmet HIV prevention and treatment needs among young female sex workers and young men who have sex with men in Cameroon: a cross-sectional analysis

BACKGROUND

In Cameroon, female sex workers (FSWs) and men who have sex with men (MSM) carry disproportionately high burdens of HIV. Despite specific vulnerabilities and health needs, young key populations remain understudied and underserved in Cameroon owing to legal, ethical, and social challenges. We aimed to assess and compare HIV-related behavioural and structural risks and coverage of HIV prevention and treatment services between young and older key populations to inform implementation strategies.

METHODS

FSWs and MSM aged 18 years or older were recruited through respondent-driven-sampling for a biobehavioural survey carried out in five Cameroonian cities. Prevalence of HIV, risk, stigma, and health service engagement were compared between young (18-24 years) and older (≥25 years) key populations. Multivariable Poisson regression models, disaggregated by key population, were constructed to estimate prevalence ratios (PR) by age group for HIV service engagement.

FINDINGS

Participants were recruited between Nov 30, 2015, and Oct 12, 2016. Among FSWs, 724 (32%) of 2255 were aged 18-24 years, and median age of first transactional or compensated sex was 22 years (IQR 19-28). Among MSM, 840 (63%) of 1323 were aged 18-24 years, and median age of first anal sex was 18 years (IQR 17-21). RDS-adjusted HIV prevalence was 8·5% (95% CI 4·7-15·2) among young FSWs and 12·9% (9·5-18·2) among young MSM. HIV viral suppression (<1000 copies per mL) was evident in 24 (43%) of 56 young and 292 (61%) of 479 older FSWs (p=0·0091) and 40 (34%) of 119 of young and 64 (42%) of 153 older MSM (p=0·17). Young FSWs were less likely than older FSWs to report recent peer education (PR 0·65, 95% CI 0·48-0·88), or membership of an FSW community-based organisation (PR 0·69, 0·55-0·86) and were more likely to report untreated sexually transmitted infection symptoms in the past year (PR 1·29, 1·03-1·61). Young MSM were less likely than older MSM to report an HIV test in the past year (PR 0·88, 0·78-0·98), recent peer education (PR 0·77, 0·62-0·95) and receipt of free condoms (PR 0·77, 0·67-0·89). By key population, condom use and recent experiences of stigma and violence were similar between age groups (p>0·05).

INTERPRETATION

Young key populations have similar behavioural and structural risks to older populations but have lower coverage of HIV preventive and treatment services. Achieving an AIDS-free generation in Cameroon and elsewhere in the region necessitates overcoming social and legal challenges and delivering innovative, evidence-based, and human rights-affirming HIV prevention and treatment interventions for young key populations.

FUNDING

PEPFAR, USAID.

Inclusive engagement for health and development or 'political theatre': results from case studies examining mechanisms for country ownership in Global Fund processes in Malawi, Tanzania and Zimbabwe

Background

For many countries, including Malawi, Tanzania and Zimbabwe, 2017 was a transition year for support from the Global Fund to Fight AIDS, Tuberculosis and Malaria as one funding cycle closed and another would begin in 2018. Since its inception in 2001, the Global Fund has required that countries demonstrate ownership and transparency in the development of their funding requests through specific processes for inclusive, deliberative engagement led by Country Coordinating Mechanisms (CCMs). In reporting results from case study research, the article explores whether, in the context of the three countries, such requirements continue to be fit-for-purpose given difficult choices to be made for financing and sustaining their HIV programmes.

Results

The findings show how complex, competing priorities for limited resources increasingly strain processes for inclusive deliberation, a core feature of the Global Fund model. Each country has chosen expansion of HIV treatment programmes as its main strategy for epidemic control relying almost exclusively on external funding sources for support. This step has, in effect, pre-committed HIV funding, whether available or not, well into the future. It has also largely pre-empted the results of inclusive dialogue on how to allocate Global Fund resources. As a result, such processes may be entering the realm of ‘political theatre,’ or processes for processes’ sake alone, rather than being important opportunities where critical decisions regarding priorities for national HIV programmes and how they are funded could or should be made.

Conclusion

To address this, the Global Fund has begun an initiative to shore-up the capabilities of CCMs, with specialised technical and financial support, so that they can both grasp and influence the overall financing and sustainability of HIV programmes, rather than focussing on Global Fund programmes alone. What stronger CCMs could achieve, given the growing HIV-treatment-related commitments in these three countries, remains to be seen. Starting in 2020, the three countries will discover what resources the Global Fund will have for them for the 2021–2023 period. The resource needs for expanding HIV treatment programmes for this period are already foreseeable leaving few if any options for future deliberation should funding from the Global Fund and others not grow at a similar pace.

Electronic supplementary material

The online version of this article (10.1186/s12992-019-0475-9) contains supplementary material, which is available to authorized users.

Cash Transfers, Young Women's Economic Well-Being, and HIV Risk: Evidence from HPTN 068

Despite the large interest in economic interventions to reduce HIV risk, little research has been done to show whether there are economic gains of these interventions for younger women and what intermediary role economic resources play in changing participants' sexual behavior. This paper contributes to this gap by examining the impacts of a conditional cash transfer (CCT) for young women in South Africa on young women's economic resources and the extent to which they play a role in young women's health and behavior. We used data from HIV Prevention Trials Network 068 study, which provided transfers to young women (in addition to their parents) conditional on the young woman attending at least 80% of school days in the previous month. We found that the CCT increased young women's economic wellbeing in terms of having savings, spending money, being unindebted, and food secure. We also investigated heterogeneous effects of the program by household economic status at baseline because the program was not specifically poverty targeted and found that the results were driven by young women from the poorest families. From these results, we examined heterogeneity by baseline poverty for other outcomes related to HIV risk including sexual behavior and psychosocial well-being. We found psychosocial well-being benefits in young women from the poorest families and that economic wellbeing gains explained much these impacts.

Association between HIV/AIDS knowledge and stigma towards people living with HIV/AIDS in Botswana

In Botswana, an estimated 350 000 people live with HIV/AIDS. HIV/AIDS testing rates are low, suggesting that many other people remain undiagnosed. Stigma related to HIV/AIDS is prevalent and contributes to low testing rates and under-diagnosis of the virus. Identifying factors that contribute to stigma, such as insufficient or inaccurate knowledge of HIV/AIDS, may be critical in increasing early identification and treatment. This cross-sectional study used nationally representative data from the 2013 Botswana AIDS Impact Survey (BAIS) IV to examine the relationship between HIV/AIDS knowledge and stigmatising attitudes toward people living with HIV/AIDS (PLWHA). The mean (standard error) for stigma towards PLWHA score and HIV/AIDS knowledge score were 0.99 (0.02) and 5.90 (0.03) respectively. HIV/AIDS knowledge score and stigma towards PLWHA score were strongly positively correlated r (4,4045) = 0.415, p < 0.001). After adjusting for potential confounders, HIV/AIDS knowledge score significantly predicted stigma towards PLWHA score [coefficient β (95% CI)] [-0.25 (-0.29, -0.20), p < 0.001]. These findings imply that programmes and interventions that increase HIV/AIDS knowledge may reduce the pervasive apprehension, blame, and stigmatising attitude held towards PLWHA in Botswana.

Exploring intersections of localised gender norms and unanticipated effects of a sexual and reproductive health intervention: implications of respect and being a "good girl" in Zambézia Province, Mozambique

Women First was a combined economic and social empowerment intervention implemented between 2010 and 2015 in Zambézia Province, Mozambique. The intervention was designed to reduce adolescent girls' risk of HIV and gender-based violence, improve school attendance and empower girls. However, perceptions of girls' improved respectfulness also emerged as an unanticipated effect during the programme evaluation. In this paper, we explore emic definitions of respect and girls' good behaviour and perceptions of how the intervention caused improvements in behaviour from the perspective of intervention participants, their heads of household, influential men in their lives, and community members. In depth interviews and focus group discussions were conducted at two time points in 12 rural communities where the intervention was implemented. Respondents described "good girls" as deferential and obedient; productive and willing to serve their families and communities; and sexually chaste and modestly dressed. Respondents believed the intervention had reinforced or taught these behaviours, although they were generally aligned with gender norms that were not part of the formal intervention content and sometimes contrary to the intervention's primary goals. Implications for future sexual and reproductive health programmes are discussed.

Who is sexually active? Using a multi-component sexual activity profile (MSAP) to explore, identify and describe sexually-active high-school students in rural KwaZulu-Natal, South Africa

BACKGROUND

Understanding sexual activity is necessary to prevent sexually transmitted infections. Evidence from Sub-Saharan Africa suggests that 10-20% of youth aged 15-24 are sexually active before reaching 15 years, yet estimating sexual activity remains challenging. This study explored the use of multiple sexual health outcomes to identify sexually-active young women in rural KwaZulu-Natal, South Africa.

METHODS

Using a multi-component sexual activity profile (MSAP), we aimed to identify sexually active students. Based on data from 2675 grade 9 and 10 students attending 14 high schools) in rural KwaZulu-Natal, we constructed a descriptive diagram identifying students who were sexually active by self-report vs MSAP profile. T-tests for two independent samples was performed to compare by sex and ecological variables that characterise students newly-identified as sexually active.

RESULTS

Using self-report only, 40.3% self-reported as sexually active, whilst the MSAP identified 48.7% (223 additional students). More females were identified than males. Younger adolescents were more likely to underreport sexual activity but were identified using MSAP. Newly-identified as sexually active were more likely to be female (p = < 0.000), 15 years old or younger (p = 0.008), less likely to perceive being at risk (p = 0.037) or have ever used alcohol (p = < 0.000). At a relational level, they were less likely to report having ever had a boyfriend/girlfriend (p = 0.000) or to have felt pressured to have sex by their peers (p = < 0.000) or partners (p = 0.008). At a familial level they more likely to be of medium socioeconomic (SES) status (p = 0.037) whilst at a school and community level they were less likely to have repeated a grade (p = 0.024) and were more likely to be engaged in social activities (p = 0.032).

CONCLUSIONS

The MSAP profile identified more potentially sexually active students, and gave insight into the characteristics of students who may be unwilling to self-report sexual activity Future work should investigate how this approach could enhance and describe sexually-active adolescents for research and healthcare provision.

Age-disparate partnerships and HSV-2 among adolescent girls and young women in South Africa: implications for HIV infection risk

OBJECTIVE

There is an urgent need to understand high HIV-infection rates among young women in sub-Saharan Africa. While age-disparate partnerships have been characterised with high-risk sexual behaviours, the mechanisms through which these partnerships may increase HIV-risk are not fully understood. This study assessed the association between age-disparate partnerships and herpes simplex virus type-2 (HSV-2) infection, a factor known to increase HIV-infection risk.

METHODS

Cross-sectional face-to-face questionnaire data, and laboratory HSV-2 and HIV antibody data were collected among a representative sample in the 2014/2015 household survey of the HIV Incidence Provincial Surveillance System in KwaZulu-Natal, South Africa. Among 15-24-year-old women who reported having ever had sex (n=1550), the association between age-disparate partnerships (ie, male partner ≥5 years older) and HSV-2 antibody status was assessed using multivariable Poisson regression models with robust variance. Analyses were repeated among HIV-negative women.

RESULTS

HSV-2 prevalence was 55% among 15-24-year-old women. Women who reported an age-disparate partnership with their most recent partner were more likely to test HSV-2 positive compared with women with age-similar partners (64% vs 51%; adjusted prevalence ratio (aPR):1.19 (95% CI 1.07 to 1.32, p<0.01)). HSV-2 prevalence was also significantly higher among HIV-negative women who reported age-disparate partnerships (51% vs 40 %; aPR:1.25 (95% CI 1.05 to 1.50, p=0.014)).

CONCLUSIONS

Results indicate that age-disparate partnerships are associated with a greater risk of HSV-2 among young women. These findings point towards an additional mechanism through which age-disparate partnerships could increase HIV-infection risk. Importantly, by increasing the HSV-2 risk, age-disparate partnerships have the potential to increase the HIV-infection risk within subsequent partnerships, regardless of the partner age-difference in those relationships.

Two Birds with One Stone: Health Care Providers' Perspectives about Prevention Technologies in Kenya and South Africa

To meet the reproductive health needs of women, especially those in sub-Saharan Africa, multipurpose prevention technologies (MPTs) that combine pregnancy and HIV prevention into a single product could be highly beneficial. This qualitative study with health care providers in Kenya and South Africa examined health system factors that may facilitate or inhibit the delivery of these MPTs. Twelve qualitative interviews were conducted with health care providers at each site (24 interviews total). Providers were presented with pictures and actual placebo prototypes of 4 MPTs: a vaginal ring, an oral pill, an injectable, and an implant. Four themes emerged related to health care providers' reported interest in offering the proposed MPTs: (1) perceptions of young women's interest in the MPTs, (2) considerations about product administration, (3) feedback about product attributes, and (4) providers' training needs. Overwhelmingly, health care providers are eager to offer a product that prevents both HIV and unintended pregnancy in young women.

Employees' experiences of the stigma of HIV in a retail organisation: secrecy, privacy or trust?

This study unveiled the participants' experiences of HIV-related stigma in a retail organisation located in the Western Cape province of South Africa. A qualitative approach was adopted because of its appropriateness for unravelling subjective phenomena such as employees' experiences of HIV-related stigma. In-depth interviews were conducted with 10 HIV-positive employees who volunteered to participate. The findings reveal that the participants concealed their HIV-positive status because they feared that the co-workers and managers might stigmatise them and breach confidentiality. The results also revealed that despite being HIV-positive, the participants seemed not to experience a lower work-related self-concept as they said that they are as competent as other employees. The study draws on these empirical findings to theorise about whether concealment of an HIV-positive status is symptomatic of secrecy, the desire for privacy or low levels of trust.

Early Life HIV-1 Immunization: Providing a Window for Protection Before Sexual Debut

Limited success of current HIV-1 vaccines warrants new approaches. We discuss feasibility and potential benefits of early life HIV-1 immunization followed by vaccine boosts during childhood that may enable maturation of vaccine-induced broad anti-HIV-1 immunity over several years. By initiating this immunization approach in the very young, well before sexual debut, such a strategy may dramatically reduce the risk of HIV-1 infection.

Power to participants: a call for person-centred HIV prevention services and research

INTRODUCTION

While biomedical HIV prevention offers promise for preventing new HIV infections, access to and uptake of these technologies remain unacceptably low in some settings. New models for delivery of HIV prevention are clearly needed. This commentary highlights the potential of person-centred programming and research for increasing the cultural relevance, applicability and use of efficacious HIV prevention strategies. It calls for a shift in perspective within HIV prevention programmes and research, whereby people are recognized for their agency rather than assumed to be passive beneficiaries or research participants.

DISCUSSION

Person-centred HIV prevention reorientates power dynamics so that individuals (rather than interventions) are at the centre of the response. Respecting personal choice and agency - and understanding how these are shaped by the context in which people exercise these choices - are critical dimensions of the person-centred approach. Community-based participatory research should be employed to inform and evaluate person-centred HIV prevention. We argue that community-based participatory research is an orientation rather than a method, meaning that it can be integrated within a range of research methods including randomized controlled trials. But embracing community-based participatory approaches in HIV prevention research requires a systemic shift in how this type of research is reported in high impact journals and in how research impact is conceived. Community-based organizations have a critical role to play in both person-centred HIV prevention and research.

CONCLUSIONS

HIV prevention is situated at the intersection of unprecedented opportunity and crisis. Person-centred approaches to HIV prevention and research shift power dynamics, and have the potential to ensure a more sustainable response with each individual actively participating in their own care and meaningfully contributing to the production of knowledge on HIV prevention. This approach taps into the resourcefulness, resilience and knowledge of the person and their communities, to strengthen research and programmes, making them more relevant, appropriate and effective.

Lack of Virological Suppression Among Young HIV-Positive Adults in Botswana

BACKGROUND

HIV-1 RNA load is the best biological predictor of HIV transmission and treatment response. The rate of virologic suppression among key subpopulations can guide HIV prevention programs.

METHODS

The Botswana Combination Prevention Project performed a population-based household survey among adults in 30 communities in Botswana. Data collected included knowledge of HIV-positive status, antiretroviral therapy (ART) coverage, and virologic suppression (HIV-1 RNA ≤400 copies per milliliter). Individuals aged 16-29 years were considered young adults.

RESULTS

Among 552 young people living with HIV enrolled with RNA load data and ART status available, 51% (n = 279) had undetectable HIV-1 RNA, including 54% of young women and 32% of young men [sex prevalence ratio (PR): 0.53; 95% confidence interval (CI): 0.43 to 0.80; P < 0.001]. Compared with older adults (30-64 years old), young HIV-infected adults were significantly less likely to have undetectable HIV-1 RNA (PR: 0.65; 95% CI: 0.59 to 0.70; P < 0.0001), including both men (PR: 0.43; 95% CI: 0.34 to 0.56; P < 0.0001) and women (PR: 0.67; 95% CI: 0.62 to 0.74; P < 0.0001). Among a subset of people living with HIV receiving ART, young adults also were less likely to have undetectable HIV-1 RNA load than older adults (PR: 0.93; 95% CI: 0.90 to 0.95; P = <0.0001). Analysis of the care continuum revealed that inferior HIV diagnosis and suboptimal linkage to care are the primary reasons for low virologic suppression among young adults.

CONCLUSIONS

Young adults in Botswana are significantly less likely to have undetectable HIV-1 RNA load compared with older adults. In the era of broad scale-up of ART, interventions able to diagnose young adults living with HIV and link them to effective therapy are urgently needed.