Prevention Cascade Research Articles

‘They went for the test together but came back separately’: a constructivist grounded theory perspective on male engagement in antenatal HIV testing in Bamenda, Cameroon

IntroductionMale engagement in HIV testing during pregnancy significantly contributes towards the prevention of maternal seroconversion and paediatric HIV acquisition. Despite this, men especially the male partners of pregnant women have been consistently missing in the HIV prevention cascade. The factors accounting for sub-optimal levels in male engagement intersect but reasons for this are poorly understood. Using the combined perspectives of pregnant women and their partners, this study aims to expand the evidence on the forces that influence prenatal HIV testing behaviours among couples in Bamenda, Cameroon.MethodsThis qualitative study purposively selected pregnant women receiving prenatal care for semi-structured interviews (n = 38); focus group discussion (n = 6) and their male partners (n = 30 for semi-structured interviews and n = 6 for focus group discussion) in Nkwen Baptist Hospital—an urban hospital in Bamenda, Cameroon. Nvivo was used for data management and subsequently we performed a grounded theory analysis through memoing and constant comparisons.ResultsMaternal HIV risk perception was the prominent theme intersecting with couple communication, perceptions on HIV testing outcome, and engagement of male partners by facility staff to influence couple prenatal HIV testing behaviours. Although participants recognised the need for couple HIV testing, individual, interspousal, structural and socio-cultural factors determined uptake of male partner testing. Perceptions on HIV risk were largely inaccurate and strongly gendered. For example, normative expectations on female fidelity were perceived as a buffer against HIV acquisition but this was not the norm regarding male partner behaviour. Also, couple communication was rare or subtle—mostly initiated by women who suspected spousal infidelity. For some men, HIV testing was a conscious decision to confirm fidelity, for others this was challenged by the fear of sero-discordant results and assumptions that maternal test results were a representation of their sero-status.ConclusionMale partner involvement in prenatal HIV testing is largely influenced by gendered perceptions on HIV risk and couple testing outcomes. Given that these perceptions are moderated by spousal communication and the engagement of male partners by health facility staff, we call for gender-transformative interventions and policies that offer education on prenatal HIV risk, support couple communication and spousal disclosure.

Measurement and interpretation of the Harare HIV combination prevention cascade in priority populations: A population survey of adolescent girls and young women and young men in Zimbabwe.

HIV-negative adolescent girls and young women (AGYW), and male partners, have disproportionately high HIV incidence in many African countries. We used a new HIV Prevention Cascade (HPC) approach to quantify levels of, and barriers to, prevention method use to guide interventions to increase effective uptake of primary HIV prevention. Data from the Manicaland HPC pilot study (2018-19; N=9803) in Zimbabwe were used to measure levels of sexual risk behaviour and construct HPCs for male condom, PrEP (females), VMMC (males) and combination prevention use by HIV-negative sexually-active AGYW (15-24-years) and male partners (15-29-years). 19% of AGYW (N=1140) and 37% of young men (N=955) who had started sex reported one or more HIV risk behaviour and met the definition of the priority populations for HIV prevention. Of these, 63% of females and 87% of males were motivated to use an HIV prevention method, 28% and 63% had access to a method, and 16% and 53% used a method. Male condoms were the most commonly used prevention method, accounting for 97% of use in females and 55% in males. Barriers to motivation, access and capacity to use were reported for all priority populations and methods. Some barriers were common across HPCs (e.g. lack of risk perception, social unacceptability, and lack of acceptable provision); others were specific to particular prevention methods or priority populations (e.g. lack of availability). HIV risk behaviours were commonly reported, but use of prevention methods is low in young people in Manicaland. Population survey measurements of HPCs revealed large gaps in all steps in the cascade (lack of motivation, lack of access and lack of capacity to use prevention) but also provided information on the reasons for these gaps that can aid in designing interventions that reduce new infections.

A Diabetes Prevention Cascade Model for Health Care Organizations: Results from a Pilot for Disproportionately Affected Populations

A Diabetes Prevention Cascade Model for Health Care Organizations: Results from a Pilot for Disproportionately Affected Populations

Barriers to PrEP use and adherence among adolescent girls and young women in Eastern, Southern, and Western Africa: a scoping review

BackgroundAdolescent girls and young women (AGYW) are disproportionately affected by HIV. Globally, in 2022, an estimated 4000 AGYW 15–24 were newly infected with HIV weekly, and nearly 78% of these infections occurred in sub-Saharan Africa. Oral Pre-Exposure Prophylaxis (PrEP) is a key HIV prevention option within an overall HIV combination prevention approach with an efficacy of over 90% when taken correctly. However, uptake of and adherence to PrEP remains low, particularly among AGYW. This scoping review aims to map available evidence on factors that limit PrEP use among AGYW in Eastern, Southern, and Western African countries to inform research, policy, and practice on delivery of PrEP. Our review identified factors that affect PrEP journey among AGYW along the HIV prevention cascade.MethodsGuided by Arksey and O’Malley framework and using the PRISMA extension for scoping reviews, we searched the Web of Science, Global Health, and PubMed databases. Our review focused on oral PrEP, specifically papers reporting on barriers to PrEP experienced by AGYW, and peer-reviewed English-language articles published between 2012 and 2023.ResultsOf 1063 papers screened, 25 were included. Over half (60%) of the studies were qualitative; 72% were conducted in Kenya and South Africa. The barriers affecting motivation were, fear of side effects and pill burden, percieved low HIV risk, perceived stigma, PrEP use disapproval from parents and partners. PrEP access was limited by healthcare providers' stigma, isolated clinic setup, and lack of resources. Effective PrEP use was limited by a lack of parental or partner support, stigma, and lifestyle changes.ConclusionsAdolescent girls and young women face multiple and often intersecting barriers to effective PrEP use with stigma being a factor cross-cutting all steps of the prevention cascade. Similarly, lack of social support, reflected through disapproval and judgmental attitudes and low HIV risk perception, also affected two steps of the prevention cascade. Our review identified gaps in available evidence, with most studies conducted in only two countries and few quantitative studies available. Improving PrEP uptake and adherence requires interventions that address barriers across the cascade, with a particular focus on stigma and social support.

HIV prevention and treatment cascades among female sex workers in Ghana: gaps and priorities that should be addressed by the national programme

BackgroundThere is currently limited knowledge about HIV prevention and treatment cascades among female sex workers (FSW) in Ghana. This study sought to use the 2020 bio-behavioural survey (BBS) among FSWs to identify gaps and priorities in HIV treatment and prevention cascades to help achieve the 95–95-95 fast track targets.MethodThe study used a cross-sectional design with Time Location Sampling (TLS) technique in all regions of Ghana. All eligible FSW at the selected venues and stipulated time frame were interviewed and tested for HIV onsite using the national testing algorithm. For condom use and HIV testing cascades, each step of the cascade was calculated as a percentage of all FSW. Analysis of treatment cascade was restricted to HIV positive participants and was presented using both conditional (% eligible PLHIV) and unconditional (% all PLHIV) approaches. Viral suppression level was defined as < 1000 copies/ml.ResultsA total of 6,773 participants took part in the behavioral interviews while 6,217 took part in the biological component which involves HIV testing. In all, 33% and 80% of all FSW do not consistently use condoms with their paying clients and non-paying partners respectively. The findings further show that 26.6% of FSW have never tested for HIV, and contrary to the HIV testing policy of every six months for FSW, 70.0% did not test for HIV 6 months preceding the survey and 40.7% of all FSW did not test for HIV 12 months preceding the survey.The conditional treatment cascade was 32%-71%-57% while the unconditional cascade was 32%-23%-49%. The study further shows 68% of the HIV positive FSW were not aware of their HIV positive status, 77% were not on treatment, while nearly 51% were not virally suppressed regardless of treatment status.ConclusionThe results show that both the prevention and treatment cascades are suboptimal. Key gaps identified include low: HIV testing, viral load suppression, condom use with both paying clients and non-paying partners. There is therefore the need to scale prevention and treatment interventions particularly HIV testing, treatment initiation, consistent condoms use with both paying clients and non-paying partners to help achieve the 95–95-95 fast track targets.

Intimate partner violence, behaviours associated with risk of HIV acquisition and condom use in married women in Manicaland, East Zimbabwe: An HIV prevention cascade analysis

BackgroundIntimate partner violence (IPV) is widespread in the WHO African region with generalised HIV epidemics and may contribute to ongoing HIV transmission through its associations with behaviours associated with HIV acquisition risk and low use of prevention methods particularly in marital relationships.MethodsWe conducted a male condom HIV prevention cascade analysis using data from a general-population survey in Manicaland, Zimbabwe (July 2018-December 2019) to develop an understanding of how interventions that reduce IPV might be built upon to also reduce HIV incidence. Multivariable logistic regression was used to measure associations between currently-married HIV-negative women’s experience of IPV and: (1) being in the priority population for HIV prevention methods (i.e. married women engaging in behaviours associated with HIV acquisition risk or with a spouse who engages in similar behaviours or is living with HIV), and (2) male condom use by women in this priority population. Male condom HIV prevention cascades, with explanatory barriers for gaps between successive cascade bars (motivation, access and effective use), were compared for women in the priority population reporting and not reporting IPV.ResultsWe found a positive association between IPV and being in the priority population for HIV prevention methods (72.3% versus 58.5%; AOR = 2.26, 95% CI:1.74–2.93). Condom use was low (< 15%) for women in the priority population and did not differ between those reporting and not reporting IPV. The HIV prevention cascades for women reporting and not reporting IPV were similar; both showing large gaps in motivation and capacity to use male condoms effectively. Women reporting motivation and access to male condoms were more likely to report their partner being a barrier to condom use if they experienced IPV (84.8% versus 75.5%; AOR = 2.25, 95% CI:1.17–4.31).ConclusionThe findings of this study support the case for trials of integrated IPV/HIV prevention interventions that are tailored to improve HIV risk perception among HIV-negative married women and to make condom provision more acceptable for this group.

Contextualizing HIV testing experiences within the HIV prevention cascade: qualitative insights from refugee youth in Bidi Bidi refugee settlement, Uganda

BackgroundThere remain key knowledge gaps regarding HIV testing needs and priorities among refugee youth in low and middle-income country (LMIC) humanitarian settings. The HIV prevention cascade framework focuses on three domains (motivation, access, effective use) central to prevention uptake, yet is understudied in relationship to HIV testing, particularly among refugee youth. Uganda is an exemplar context to explore refugee youth HIV testing needs and priorities as it hosts 1.5 million refugees and is Africa’s largest refugee hosting nation. In this study, we explored perceptions and experiences regarding HIV testing among refugee youth living in Bidi Bidi refugee settlement, Uganda.MethodsWe conducted a community-based research study in Bidi Bidi Refugee Settlement, one of the world’s largest refugee settlements with over 195,000 residents. This qualitative study involved four focus groups (2 with young women, 2 with young men) with refugee youth aged 16–24 living in Bidi Bidi refugee settlement. We applied thematic analysis informed by the HIV prevention cascade to understand domains of motivation, access, and effective use that emerged as salient for HIV testing engagement.ResultsParticipants (n = 40; mean age: 20 years, standard deviation: 2.2) included refugee young women (n = 20) and young men (n = 20), of whom 88% had a lifetime HIV test and 58% had ever heard of HIV self-testing. Participant discussions described HIV testing motivation was influenced by dimensions of: HIV treatment and testing knowledge; risk perception; positive and negative consequences of use; and social norms regarding gender and age. Access to HIV testing was shaped by: limited availability; distance and language barriers; confidentiality concerns; and affordability. Effective use of and engagement with HIV testing was related to HIV serostatus knowledge self-efficacy and in/equitable partner dynamics.ConclusionsComplex, multi-level factors shape motivation for, access to, and effective use of HIV testing among refugee youth in Bidi Bidi. Findings align with the HIV prevention cascade framework that helps to identify gaps to inform intervention development with youth in humanitarian settings. HIV testing approaches tailored for refugee youth in contexts such as Bidi Bidi can foster HIV prevention and treatment literacy, gender equity, gender-based violence prevention, and intersectional stigma reduction.

Factors Related to the Rise of Congenital Syphilis From the Perspectives of Prenatal Providers and Birthing Parents in Chicago, IL, USA.

Rates of congenital syphilis (CS) in the United States have risen sharply in recent years. There has been sparse research centering the voices and experiences of birthing parents who have delivered infants with CS and prenatal providers in Chicago or the surrounding Midwestern United States to date. Additionally, there has been little research on the role of extrinsic factors, such as stigma and attitudes surrounding CS in an individual's community, in their entry into and retention in the CS prevention cascade. Semistructured interviews seeking to gather perspectives and factors related to the rise of CS were conducted with birthing parents who delivered infants with CS at a major academic medical institution (AMI) and the prenatal providers who served them. This was supplemented by retrospective data of birthing parent outcomes. Barriers elicited during the interviews included insufficient penicillin uptake, limited transportation, poor communication between providers and patients, gaps in patient understanding or knowledge around CS contraction and treatment, missed appointments, appointment burden for patients, life stressors of patients, housing instability, childcare difficulties, and stigma related to the CS diagnosis. The quantitative data revealed differing proportions of CS outcomes and care between those with care within the AMI, those with care outside the AMI, and those who had no prenatal care. This study found numerous perspectives and factors that may explain the rise of CS along various stages of the syphilis care continuum through in-depth interviews of prenatal providers and birthing parents.

Viral load non-suppression among adolescents and youth living with HIV in South Africa.

Despite the increased initiation and uptake of antiretroviral therapy (ART) in South Africa, some people living with HIV (PLHIV) who are on ART still have non-suppressed viral load (VL). This study aimed to determine the prevalence of VL non-suppression among adolescents and youth (aged 12 years - 24 years) living with HIV and on ART in South Africa, as well as the factors associated with it. Data from the 2017 South African national HIV prevalence, incidence, behaviour, and communication survey were analysed. The survey used a multistage-stratified cluster sampling design. A backward stepwise multivariable generalised linear model was used to identify factors associated with VL non-suppression. The study included 340 participants aged 12 years - 24 years, with a median age of 21 (interquartile range [IQR]: 18-23). The proportion of adolescents and youth living with HIV and on ART with non-suppressed VL was 19.2% (95% confidence interval [CI]: 14.4-25.3). Approximately 60% of the participants were not on ART. The odds of VL non-suppression were significantly higher among youth aged 15 years - 19 years (adjusted odds ratio [AOR] = 1.63 [95% CI: 1.24-2.13], p = 0.001) and aged 20 years - 24 years (AOR = 1.22 [95% CI: 1.06-1.41], p = 0.005) compared to adolescents aged 12 years - 14 years. The odds were significantly lower among individuals of other races (AOR = 0.80 [95% CI: 0.69-0.92], p = 0.003) compared to black African people. Findings suggest a need for ART education and counselling as part of treatment support. In addition, the promotion of HIV awareness as part of strengthening the HIV treatment and prevention cascade. The article showed the prevalence of VL non-suppression and associated factors among adolescents and youth.

Appraising the HIV Prevention Cascade methodology to improve HIV prevention targets: Lessons learned from a general population pilot study in east Zimbabwe.

Multiple HIV Prevention Cascades (HPC) formulations have been proposed to assist advocacy, monitoring of progress of HIV prevention implementation and research to identify ways to increase use of HIV prevention methods. Schaefer and colleagues proposed a unifying formulation suitable for widespread use across different populations which could be used for routine monitoring or advocacy. Robust methods for defining and interpreting this HPC formulation using real world data is required. Data collected as part of the Manicaland Pilot HIV Prevention Cascades Study, east Zimbabwe, in 2018-19, was used to validate the HPC framework for PrEP, VMMC, male condom and combination prevention method use. Validation measures included feasibility of populating the HPC, contrasting simple vs complex measures of the HPC (using 2-sample proportion test), and testing ability of main bars to predict prevention use and testing whether sub-bars explained why people were lost from the HPC using logistic regression. It was possible to populate the HPC for both individual and combined prevention methods using pilot survey data. Most steps were associated with prevention method usage outcomes, except for VMMC. There were significant overlaps between individuals reporting positive responses for the main bar and those citing barriers to motivation. To refine the HPC's access bar definition, it is suggested to also consider individuals who report access barriers. While the HPC framework identifies barriers to individual prevention methods, challenges arise in identifying those for combined prevention. Our study successfully utilised questionnaires from the Manicaland HPC pilot survey to measure the HPC for individual and combined prevention methods. This demonstrates the feasibility of populating this framework using general population survey data and designated questionnaire modules. We propose a final formulation of the HPC, questionnaire modules and methods to create it. With proper evaluation and promotion, the HPC can enhance prevention services, aiding in the crucial reduction of HIV incidence.

A risk-differentiated, community-led intervention to strengthen uptake and engagement with HIV prevention and care cascades among female sex workers in Zimbabwe (AMETHIST): a cluster randomised trial

Female sex workers remain disproportionately affected by HIV. The aim of this study was to determine the effect of risk-differentiated, peer-led support for female sex workers in Zimbabwe on the risk of HIV acquisition and HIV transmission from sex among female sex workers. In this cluster randomised, open-label, controlled study, 22 clinics dedicated to female sex workers co-located in government health facilities throughout Zimbabwe were allocated (1:1, through restricted randomisation) to usual care or AMETHIST intervention. Usual care comprised HIV testing, pre-exposure prophylaxis (PrEP), referral to government antiretroviral therapy (ART) services, contraception, condoms, syndromic management of sexually transmitted infections, health education, legal advice, and peer support. AMETHIST added peer-led microplanning tailored to individuals' risk and participatory self-help groups. All cisgender women (aged >18 years) who had sold sex within the past 30 days and lived or worked within trial cluster areas were eligible. Intervention status was not masked to programme implementers but was masked to survey teams and laboratory staff. After 28 months, a respondent-driven sampling (RDS) survey was done in the female sex worker population around each clinic, which measured the primary outcome, the combined proportion of female sex workers in the surveyed population at risk of transmitting HIV (ie, were HIV positive, not virally suppressed, and not consistently using condoms) or at risk of acquiring HIV (ie, were HIV negative and not consistently using condoms or PrEP). We report prespecified analyses of the disaggregated proportions of female sex workers in the surveyed population at risk of either transmission or acquisition of HIV. Analyses were prespecified, RDS-weighted, and age-adjusted. This trial is registered with the Pan African Clinical Trials Registry, PACTR202007818077777. The AMETHIST intervention was started on May 15, 2019, and data were collected from June 1, 2019, until Dec 13, 2021. The RDS survey was done from Oct 18 to Dec 13, 2021, with 2137 women included in the usual care group (11 clusters) and 2131 in the AMETHIST intervention group (11 clusters) after excluding survey seeds (n=132) and women with missing key data (n=44). 1973 (46·2%) of the 4268 female sex workers surveyed were living with HIV; of these, 863 (93·5%; RDS-adjusted) of 931 women in the intervention group and 927 (88·8%) of 1042 in the usual care group were virologically suppressed. 287 (22·4%) of 1200 HIV-negative women in the intervention group and 194 (15·7%) of 1096 in the usual care group reported currently taking PrEP, of whom only two (0·4%) of 569 had protective tenofovir diphosphate concentrations in dried blood spots (>700 fmol/dried blood punch). There was no effect of the intervention on the primary endpoint of risk of both HIV transmission and acquisition (intervention group n=1156/2131, RDS-adjusted proportion 55·3%; usual care group n=1104/2137, RDS-adjusted proportion 52·7%; age-adjusted risk difference -0·9%, 95% CI -5·7% to 3·9%, p=0·70). For the secondary outcomes, the proportion of women living with HIV at risk of transmission was low and significantly reduced in the intervention group (n=63/931, RDS-adjusted proportion 5·8%) compared with the usual care group (103/1041, 10·4%), with an age-adjusted risk difference of -5·5% (95% CI -8·2% to -2·9%, p=0·0003). Risk of acquisition among HIV-negative women was similar in the intervention (n=1093/1200, RDS-adjusted proportion 92·1%) and the usual care group (1001/1096, 92·2%), with an age-adjusted risk difference of -0·6% (95% CI -4·6 to 3·4, p=0·74). There was no overall benefit of the intervention on combined risk of transmission or acquisition. Viral load suppression in women living with HIV was high and appeared to be further improved by AMETHIST, suggesting potential for impressive uptake and adherence to ART in vulnerable and mobile populations. Sustaining treatment and reinvigorating prevention remain crucial. The Wellcome Trust and the Bill & Melinda Gates Foundation. For the Shona and Ndebele translations of the abstract see Supplementary Materials section.

The HIV prevention decision-making cascade: Integrating behavioural insights into HIV prevention efforts

The syndemic of HIV, sexually transmitted infections (STIs), and early pregnancy remain a key challenge to global public health. Decision-making around sexual and reproductive health (SRH) behaviours is critical to ensuring the uptake of biomedical technologies. Drawing from behavioural science theories, we propose a novel conceptual framework—the Decision Cascade—to describe the decision-making process that a user will go through as they navigate these decisions. Analogous to the HIV prevention and treatment cascade, this model describes key steps individuals go through when deciding to use HIV prevention technologies. Each step (being cued/triggered to act, reacting to the behaviour, evaluating the behaviour, assessing the feasibility of acting and the timing and final execution of the action), is influenced by a myriad of individual and socio-cultural factors, shaping the ultimate decision and behaviour outcome in a continual cycle. This framework has applications beyond HIV prevention, extending to other SRH technologies and treatments. By prioritizing human-centered design and understanding user decision-making intricacies, interventions can enhance effectiveness and address the complexities of SRH service uptake across diverse populations. The Decision Cascade framework offers a comprehensive lens to inform intervention design, emphasizing the need for nuanced approaches that resonate with the realities of decision-makers. Adopting such approaches is essential to achieving meaningful impact in HIV prevention and broader SRH initiatives.

Preventing perinatal HIV acquisition; current gaps and future perspectives.

Although current treatment could eradicate vertical transmission, in 2022, 130 000 infants acquired HIV globally. HIV suppression with antiretroviral therapy (ART) transforms survival for people living with HIV (PLWH), and prevents transmission, including vertical. International guidelines recommend lifelong ART for PLWH, consequently perinatal HIV acquisition reflects implementation gaps in the HIV care cascade. We summarize these gaps, exploring potential novel approaches and therapeutic innovations towards eliminating vertical HIV transmission. Multifactorial challenges continue to underpin gaps in the HIV care cascade, including accessibility, availability and sustainability of HIV testing, prevention and treatment, alongside stigma, gender-based violence and poverty. Long-acting ART may be important in preventing perinatal HIV acquisition, with early data demonstrating tolerability and efficacy of injectable ART throughout pregnancy, both as HIV treatment and prevention. Carefully selected long-acting broadly neutralizing antibodies (bNAbs) matching circulating, exposing viral envelope sequences have demonstrated safety, clinical trials are ongoing to demonstrate efficacy. Emerging clinical studies should prioritize pregnant/lactating people and infants to ensure such therapies are well tolerated and efficacious. Alongside therapeutic innovation, programmatic strategies must address social and economic challenges, ensuring sustainable HIV treatment/prevention programmes and facilitating global elimination of blood-borne viruses.

Optimizing the cascade of prevention to protect people from tuberculosis: A potential game changer for reducing global tuberculosis incidence.

The provision of tuberculosis preventive treatment is one of the critical interventions to reduce tuberculosis incidence and ultimately eliminate the disease, yet we still miss appropriate tools for an impactful intervention and treatment coverage remains low. We used recent data, epidemiological estimates, and research findings to analyze the challenges of each step of the cascade of tuberculosis prevention that currently delay the strategy implementation. We addressed research gaps and implementation bottlenecks that withhold key actions in tuberculosis case finding, testing for tuberculosis infection, provision of preventive treatment with safer, shorter regimens and supporting people to complete their treatment. Empowering communities to generate demand for preventive therapy and other prevention services in a holistic manner and providing adequate financial support to sustain implementation are essential requirements. The adoption of an effective, universal monitoring and evaluation system is a prerequisite to provide general and granular insight, and to steer progress of the tuberculosis infection strategy at global and local level.

Gaps in the prevention of mother-to-child transmission of syphilis: a review of reported cases, South Africa, January 2020-June 2022.

Congenital syphilis (CS) is preventable through timely antenatal care (ANC), syphilis screening and treatment among pregnant women. Robust CS surveillance can identify gaps in this prevention cascade. We reviewed CS cases reported to the South African notifiable medical conditions surveillance system (NMCSS) from January 2020 to June 2022. CS cases are reported using a case notification form (CNF) containing limited infant demographic and clinical characteristics. During January 2020-June 2022, healthcare workers supplemented CNFs with a case investigation form (CIF) containing maternal and infant testing and treatment information. We describe CS cases with/without a matching CIF and gaps in the CS prevention cascade among those with clinical information. During January 2020-June 2022, 938 CS cases were reported to the NMCSS with a median age of 1 day (interquartile range: 0-5). Nine percent were diagnosed based on clinical signs and symptoms only. During January 2020-June 2022, 667 CIFs were reported with 51% (343) successfully matched to a CNF. Only 57% of mothers of infants with a matching CIF had an ANC booking visit (entry into ANC). Overall, 87% of mothers were tested for syphilis increasing to 98% among mothers with an ANC booking visit. Median time between first syphilis test and delivery was 16 days overall increasing to 82 days among mothers with an ANC booking visit. Only 37% of CS cases had accompanying clinical information to support evaluation of the prevention cascade. Mothers with an ANC booking visit had increased syphilis screening and time before delivery to allow for adequate treatment.

Gender Norms and Structural Barriers to Use of HIV Prevention in Unmarried and Married Young Women in Manicaland, Zimbabwe: An HIV Prevention Cascade Analysis

Background Gender norms against adolescent girls and young women (AGYW)’s having pre-marital sex and using condoms in marriage are included as barriers to motivation to use condoms in HIV prevention cascades. Representative survey data on gender norms are needed to test this assumption. Methods General-population survey participants in Manicaland, Zimbabwe (ages≥15, N=9803) were asked if they agreed/disagreed with statements on gender norms. AGYW at risk of HIV infection were asked whether community views discouraged condom use. Multivariable logistic regression was used to measure variations in community members’ views and associations between AGYW’s perceiving negative gender norms and condom HIV prevention cascades. Results 57% of men and 70% of women disagreed that ‘If I have a teenage daughter and she has sex before marriage, I would be ok with this’; and 41% of men and 57% of women disagreed that ‘If I have a teenage daughter, I would tell her about condoms’. 32% and 69% of sexually-active HIV-negative unmarried AGYW, respectively, said negative community views were important in decisions to use condoms and their friends were not using condoms. In each case, those who agreed had lower motivation to use condoms. Fewer of those with friends not using condoms reported using condoms themselves (39% vs. 68%; p&lt;0.001). 21% of men and 32.5% of women found condom use in marriage acceptable. 74% and 93% of married AGYW at risk, respectively, said negative community views influenced their decisions to use condoms and their friends did not use condoms. Fewer married AGYW reporting friends not using condoms were motivated to use condoms but there was no difference in reported condom use (4.1% vs. 6.9%; p=0.48). Conclusions Negative gender norms can form a barrier to motivation to use condoms in unmarried and married AGYW at risk of HIV infection, and, for unmarried AGYW, to condom use.

HIV Information Avoidance, HIV Stigma, and Medical Mistrust among Black Sexual Minority Men in the Southern United States: Associations with HIV Testing.

Uptake of HIV testing is a critical step in the HIV prevention and treatment care cascade. Barriers to HIV testing, however, remain and innovative research in this area is warranted to improve uptake of testing. As such, we investigated the role of HIV information avoidance - a novel construct potentially related to HIV testing. We analyzed this construct in relation to other factors known to impact HIV testing, namely HIV stigma and medical mistrust. Multiple linear regression analyses indicated that HIV information avoidance was negatively associated with HIV testing, while medical mistrust was positively associated with HIV testing. HIV testing stigma was not associated with HIV testing. This work contributes to the developing literature on HIV information avoidance and its relationships with HIV stigma and HIV testing uptake. Further, these findings can inform HIV testing interventions which often do not focus on HIV information avoidance. Future research on the mechanisms of information avoidance that are amenable to intervention, and the temporal ordering of the relationship between information avoidance and HIV testing is warranted.

The Congenital Syphilis Prevention Cascade: Reimagining a Missed Prevention Opportunities Framework for Effective Intervention.

Congenital syphilis (CS) rates have risen in the United States since 2013. Prevention of CS requires testing and treatment of pregnant and pregnancy-capable persons at high risk for syphilis. We developed a CS Prevention Cascade to assess how effectively testing and treatment interventions reached pregnant persons with a CS outcome.

Using prevention cascades to investigate coverage of contraception services among young women enrolled in a large-scale combination HIV prevention program in South Africa

ObjectivesWe investigated the coverage of contraception services (excluding condoms) to prevent unintended pregnancy among young women and girls aged 15 to 24 years who were beneficiaries of one of the two largest combination HIV and pregnancy prevention program in South Africa. Study designWe invited 2160 randomly sampled beneficiaries who were living in six of the 12 program districts across six provinces to participate in a telephone survey. We created pregnancy prevention coverage cascades and conducted univariate and multivariable analyses to identify key barriers and facilitators associated with each step of the cascade. ResultsWe achieved a response rate of 23.8%, resulting in 515 respondents, of whom 303 had sex in the 6 months before the survey. Of this subsample, 80.4% had access to contraception services, 60.6% had access and motivation to use contraceptives, and 21.9% had access to, motivation to use, and effectively used contraceptives. Distance to travel to services and not ever being offered contraceptives by health workers were access barriers, while low pregnancy risk perception was a barrier to motivation. ConclusionsMost respondents had access to and were motivated to use contraceptives other than condoms but were not effectively using them. Having been offered contraceptives facilitated better access, while distance to the services was a barrier, suggesting the importance of improving supply-side interventions, such as increasing the number and accessibility of spaces where Sexual and Reproductive Health (SRH) services are offered. We recommend longitudinal behavioral counseling for young people, especially adolescents, as well as risk reduction and information-tailored interventions. ImplicationsPregnancy prevention cascades are a promising tool to monitor progress toward universal access to contraception services and to identify barriers that need to be addressed to achieve the effective use of contraceptives.

Factors Associated with COVID-19 Vaccine Uptake among Schoolgoing Adolescent Girls and Young Women in South Africa.

(1) Background: By October 2022, vaccination rates with at least one dose of a COVID-19 vaccine were low among adolescent girls aged 12-17 (38%) and young women aged 18-34 (45%) in South Africa. This study aimed to measure and identify barriers to and facilitators of motivation to take up, access to, and uptake of COVID-19 vaccines among schoolgoing adolescent girls and young women in two districts in South Africa. (2) Methods: Using the theory of the HIV prevention cascade, we conceptualised the relationship between motivation, access, and uptake of COVID-19 vaccines, and associated barriers. Potential barriers and facilitators were identified using bivariate and multivariable Poisson regression. (3) Results: Among all 2375 participants, access was high (69%), but motivation (49%) and vaccination with at least one COVID-19 vaccine (45%) were lower. Fear of injections was a barrier to vaccine uptake (aRR 0.85 95% CI 0.82-0.88), while being tested for COVID-19 (aRR 2.10 95% CI 1.85-2.38) and believing that the COVID-19 vaccine was safe (aRR 1.31 95% CI 1.18-1.44) and would prevent you from getting very sick (aRR 1.11 95% CI 1.04-1.19) were facilitators. (4) Conclusions: The controversy about the value of vaccinating adolescents and the delay in vaccine rollout for adolescents and young adults may have contributed to fears about the safety and efficacy of COVID-19 vaccines, as well as a lack of motivation to get vaccinated.