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BACKGROUND: While traditional epidemiological approaches have supported significant reductions in malaria incidence across many countries, higher resolution information about local and regional malaria epidemiology will be needed to efficiently target interventions for elimination. The application of genetic epidemiological methods for the analysis of parasite genetics has, thus far, primarily been confined to research settings. To illustrate how these technical methods can be used to advance programmatic and operational needs of National Malaria Control Programmes (NMCPs), and accelerate global progress to eradication, this manuscript presents seven use cases for which genetic epidemiology approaches to parasite genetic data are informative to the decision-making of NMCPs. METHODS: The use cases were developed through a highly iterative process that included an extensive review of the literature and global guidance documents, including the 2017 World Health Organization's Framework for Malaria Elimination, and collection of stakeholder input. Semi-structured interviews were conducted with programmatic and technical experts about the needs and opportunities for genetic epidemiology methods in malaria elimination. RESULTS: Seven use cases were developed: Detect resistance, Assess drug resistance gene flow, Assess transmission intensity, Identify foci, Determine connectivity of parasite populations, Identify imported cases, and Characterize local transmission chains. The method currently used to provide the information sought, population unit for implementation, the pre-conditions for using these approaches, and post-conditions intended as a product of the use case were identified for each use case. DISCUSSION: This framework of use cases will prioritize research and development of genetic epidemiology methods that best achieve the goals of NMCPs, and ultimately, inform the establishment of normative policy guidance for their uses. With significant engagement of stakeholders from malaria endemic countries and collaboration with local programme experts to ensure strategic implementation, genetic epidemiological approaches have tremendous potential to accelerate global malaria elimination efforts.
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Erradicación de la Enfermedad/métodos , Malaria/epidemiología , Plasmodium/genética , ADN Protozoario/genética , Erradicación de la Enfermedad/legislación & jurisprudencia , Resistencia a Medicamentos , Flujo Génico , Humanos , Incidencia , Malaria/transmisión , Epidemiología Molecular , Organización Mundial de la SaludRESUMEN
We performed a review of the environmental surveillance methods commonly used to collect and concentrate poliovirus (PV) from water samples. We compared the sampling approaches (trap vs grab), the process methods (precipitation vs filtration), and the various tools and chemical reagents used to separate PV from other viruses and pathogens in water samples (microporous glass, pads, polyethylene glycol [PEG]/dextran, PEG/sodium chloride, NanoCeram/ViroCap, and ester membranes). The advantages and disadvantages of each method are considered, and the geographical areas where they are currently used are discussed. Several methods have demonstrated the ability to concentrate and recover PVs from environmental samples. The details of the particular sampling conditions and locations should be considered carefully in method selection.
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Monitoreo del Ambiente , Poliomielitis/virología , Poliovirus/aislamiento & purificación , Manejo de Especímenes/métodos , Humanos , Poliovirus/genética , Poliovirus/inmunologíaRESUMEN
BACKGROUND: Community health workers (CHWs) can play important roles in primary health care delivery, particularly in settings of health workforce shortages. However, little is known about CHWs' perceptions of barriers and motivations, as well as those of the beneficiaries of CHWs. In Rwanda, which faces a significant gap in human resources for health, the Ministry of Health expanded its community health programme beginning in 2007, eventually placing 4 trained CHWs in every village in the country by 2009. The aim of this study was to assess the capacity of CHWs and the factors affecting the efficiency and effectiveness of the CHW programme, as perceived by the CHWs and their beneficiaries. METHODS: As part of a larger report assessing CHWs in Rwanda, a cross-sectional descriptive study was conducted using focus group discussions (FGDs) to collect qualitative information regarding educational background, knowledge and practices of CHWs, and the benefits of community-based care as perceived by CHWs and household beneficiaries. A random sample of 108 CHWs and 36 beneficiaries was selected in 3 districts according to their food security level (low, middle and high). Qualitative and demographic data were analyzed. RESULTS: CHWs were found to be closely involved in the community, and widely respected by the beneficiaries. Rwanda's community performance-based financing (cPBF) was an important incentive, but CHWs were also strongly motivated by community respect. The key challenges identified were an overwhelming workload, irregular trainings, and lack of sufficient supervision. CONCLUSIONS: This study highlights the challenges and areas in need of improvement as perceived by CHWs and beneficiaries, in regards to a nationwide scale-up of CHW interventions in a resource-challenged country. Identifying and understanding these barriers, and addressing them accordingly, particularly within the context of performance-based financing, will serve to strengthen the current CHW system and provide key guidance for the continuing evolution of the CHW system in Rwanda.
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Agentes Comunitarios de Salud/psicología , Pacientes/psicología , Atención Primaria de Salud/organización & administración , Adulto , Agentes Comunitarios de Salud/organización & administración , Estudios Transversales , Femenino , Grupos Focales , Recursos en Salud/provisión & distribución , Humanos , Persona de Mediana Edad , Motivación , Investigación Cualitativa , Rwanda/epidemiología , Adulto JovenRESUMEN
BACKGROUND: HIV self-testing (HIVST) is a promising strategy to increase awareness of HIV status among sub-Saharan African (SSA) men. Understanding user perspectives on HIVST secondary distribution from pregnant women attending antenatal care (ANC) to their male partners is crucial to optimizing delivery strategies. METHODS: We sampled pregnant women attending ANC without their partners and purposively oversampled pregnant women living with HIV (PWHIV) to understand their unique views. We recruited male partners after obtaining contact information from women. We conducted 14 focus group discussions and 10 in-depth interviews with men and pregnant women. We assessed acceptability of HIVST secondary distribution, barriers, facilitators, and interventions to increase HIVST uptake. RESULTS: Participants felt that HIVST secondary distribution was acceptable, particularly for women in stable relationships. However, many expressed concerns about accusations of mistrust, relationship dissolution, fear of discovering serodifference, and lack of counseling associated with HIVST. PWHIV reported hesitation about secondary distribution, citing fears of unintended HIV status disclosure and abandonment resulting in financial hardship for themselves and their infant. Some participants preferred that providers contact men directly to offer HIVST kits instead of distribution via women. Participants reported that community sensitization, availability of phone-based counseling, male clinic staff, extended clinic hours, and financial incentives could increase men's HIVST use and linkage to care. CONCLUSION: Participants expressed high interest in using HIVST, but secondary distribution was not universally preferred. We identified potential strategies to increase HIVST acceptability, particularly among PWHIV and those in unstable partnerships which can inform strategies to optimize HIVST distribution.
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Infecciones por VIH , Mujeres Embarazadas , Humanos , Femenino , Masculino , Embarazo , Mujeres Embarazadas/psicología , Uganda , Autoevaluación , Investigación Cualitativa , Infecciones por VIH/diagnóstico , Infecciones por VIH/psicología , Tamizaje Masivo/métodosRESUMEN
OBJECTIVES: Secondary distribution of HIV self-test (HIVST) kits from pregnant women attending antenatal care (ANC) to their male partners is shown to increase HIV couples testing and disclosure, and is being scaled up in sub-Saharan Africa. Understanding couples-level barriers and facilitators influencing HIVST uptake is critical to designing strategies to optimise intervention coverage. DESIGN: To investigate these couples-level barriers and facilitiators, we conducted focus group discussions and in-depth interviews. Transcripts were analysed thematically and the interdependence model of communal coping and health behaviour change was adapted to explore factors impacting HIVST acceptability. SETTING: We recruited pregnant women attending two public ANC clinics in Kampala, Uganda, and male partners of pregnant women between April 2019 and February 2020. PARTICIPANTS: We conducted gender-stratified focus group discussions (N=14) and in-depth interviews (N=10) with pregnant women with and without HIV attending ANC, and male partners of pregnant women (N=122 participants). INTERVENTION: We evaluated pregnant women's and male partners' perceptions of HIVST secondary distribution in Uganda, leveraging the interdependence model of communal coping and health behaviour change. PRIMARY AND SECONDARY OUTCOME MEASURES: Key areas of focus included HIVST interest and acceptability, perspectives on HIV status disclosure to partners and gender roles. RESULTS: Participants felt that predisposing factors, including trust, communication, fear of partner and infidelity, would influence women's decisions to deliver HIVST kits to partners, and subsequent communal coping behaviours such as couples HIV testing and disclosure. Pregnancy was described as a critical motivator for men's HIVST uptake, while HIV status of pregnant women was influential in couples' communal coping and health-enhancing behaviours. Generally, participants felt HIV-negative women would be more likely to deliver HIVST, while women with HIV would be more hesitant due to concerns about discovery of serodifference and relationship dissolution. Participants stressed the importance of counsellor availability throughout the process including guidance on how women should approach their partners regarding HIVST and post-test support in case of a positive test. CONCLUSIONS: HIV-negative women in relationships with positive predisposing factors may be most likely to deliver HIVST and leverage interdependent coping behaviours. Women with HIV or those in relationships with negative predisposing factors may benefit from targeted counselling and disclosure support before and after HIVST kit distribution. Results can help support policy guidelines for HIVST kit distribution.
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Infecciones por VIH , Mujeres Embarazadas , Embarazo , Humanos , Femenino , Masculino , Uganda , Autoevaluación , Prueba de VIH , Infecciones por VIH/diagnósticoRESUMEN
BACKGROUND: Assisted partner services (APS), or exposure notification and HIV testing for sexual partners of individuals diagnosed with HIV (index clients), have been shown to be safe and effective in clinical trials. We assessed the real-world effectiveness of APS when integrated into HIV clinics in western Kenya. METHODS: In this single-arm, hybrid type 2 implementation science study, we facilitated APS implementation in 31 health facilities in Kenya by training existing health-care staff. We focused on male partner outcomes to assess the impact of APS in reaching male individuals in sub-Saharan Africa, who have lower rates of HIV testing than female individuals. Female individuals (aged ≥18 years or emancipated minor) who tested positive for HIV at participating facilities in Kenya were offered APS; consenting female participants provided contact information for all male sexual partners in the past 3 years. Male partners were notified of their potential HIV exposure and offered a choice of community-based or facility-based HIV testing services (HTS). Female index clients and male partners with HIV were followed up at 6 weeks, 6 months, and 12 months after enrolment, to assess linkage to antiretroviral treatment. Viral load was assessed at 12 months. FINDINGS: Between May 1, 2018, and March 31, 2020, 32â722 female individuals received HTS; 1910 (6%) tested positive for HIV, of whom 1724 (90%) received APS. Female index clients named 5137 male partners (median 3 per index [IQR 2-4]), of whom 4422 (86%) were reached with exposure notification and HTS. 524 (12%) of the male partners tested were newly diagnosed with HIV and 1292 (29%) reported a previous HIV diagnosis. At 12 months follow-up, 1512 (88%) female index clients and 1621 (89%) male partners with HIV were taking ART, with few adverse events: 25 (2%) female index clients and seven (<1%) male partners reported intimate partner violence, and 60 (3%) female index clients and ten (<1%) male partners reported relationship dissolution. INTERPRETATION: Evidence from this real-world APS scale-up project shows that APS is a safe, acceptable, and effective strategy to identify males with HIV and retain them in care. FUNDING: The US National Institutes of Health.
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Infecciones por VIH , Humanos , Masculino , Femenino , Adolescente , Adulto , Infecciones por VIH/diagnóstico , Infecciones por VIH/terapia , Kenia , Parejas Sexuales , Instituciones de Salud , Tamizaje MasivoRESUMEN
INTRODUCTION: Assisted partner services (APS), or notification for sexual partners of people diagnosed with HIV, is an efficient, effective, and high yield strategy to identify people living with HIV and is recommended by the World Health Organization (WHO). However, there remains a need to further understand the acceptability of APS qualitatively from a client lens, particularly when APS is integrated into the national health system. We investigated acceptability of APS when integrated into HIV services in Kenya. METHODS: Starting in May 2018, APS was implemented in 31 health facilities in Kisumu and Homa Bay counties in western Kenya. From January to December 2019, we conducted in-depth interviews (IDIs) with female index clients (n = 16) and male sexual partners (n = 17) in 10 facilities participating in an APS scale up study. Interviews assessed APS satisfaction, perceived benefits of the intervention, and challenges that may affect delivery or uptake. We applied the Theoretical Framework of Acceptability by Sekhon et al. (2017) as a guide to organize our findings. RESULTS: We find that views of APS are often guided by an individual's trust in the intervention's design and implementation, and an interest to preserve one's health and that of one's family and children. There were strong and consistent acceptable views of APS as "doing good" and "saving a life" and as a means of showing love towards one's partner(s). The initial acceptability framing of individuals engaging with APS was predicated either on a feeling of comfort with the intervention, or a wariness of divulging sex partner personal information. Health care workers (HCWs) were seen to play an important role in mitigating participant fears linked with the intervention, particularly around the sensitive nature of HIV disclosure and sexual partners. Clients noted considerable challenges that affected acceptability, including the risk to the relationship of disclosing one's HIV status, and the risk of intimate partner violence. DISCUSSION: We found that APS is acceptable as a strategy to reach male sexual partners of females diagnosed with HIV, and these findings provide opportunities to inform recommendations for further scale-up. Opportunities such as focusing on intervention confidentiality and appropriate counseling, excluding female clients at risk of IPV from this intervention, and highlighting the altruistic benefits of APS to potential clients. Understanding the perspectives of clients receiving APS in a real-world setting may be valuable to policy-makers and stakeholders interested in scaling up or enhancing APS within health systems.