52 research outputs found

    Exploring Outsider/Insider Dynamics and Intersectionalities - Perspectives and Reflections From Management Researchers in Sub-Saharan Africa

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    In this chapter, we aim to contribute to the development of an intersectional approach to culture and identity in cross-cultural management studies by exploring the experience of insider and outside ethnographers doing research with organisations in sub-Saharan Africa. We start from an understanding of researchers’ identity as resulting from the dynamic intersection of multiple categories (race, gender, class, education and so on) in specific contexts, shaped by economic, social, political and cultural processes and structures. Previous studies have highlighted that being an insider researcher (e.g., sharing key characteristics with the participants, such as skin colour or national/ethnic identity), or an outsider has a significant impact in the research process. However, insider and outsider identities have been predominantly conceived on the basis of the nationality, which has often lead to an understanding of cultures and identities as fixed and stable. In this chapter, we challenge this dominant perspective, by enlightening how researchers’ identities are fluid and continuously in-the-making, even within the research process itself. Drawing on joint reflections on our experiences as management researchers in sub-Saharan Africa, and on ten interviews with colleagues with similar experiences, we explore how researcher’s identity is shaped and negotiated along the research process and its role in knowledge production, paying especially attention to local and wider power dynamics

    Assessment of structural and process readiness for postpartum haemorrhage care in Uganda and Ghana: A mixed methods study

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    Objective To determine structural and process readiness for postpartum haemorrhage (PPH) care at referral-level facilities in Ghana and Uganda to identify opportunities for strengthening. Design Mixed-methods cross-sectional study. Setting Three districts in Ghana and two in Uganda. Population or Sample Nine hospitals in Ghana and seven in Uganda; all hospitals had theoretical capacity for caesarean section and blood transfusion. Methods We deployed a modular quantitative health facility assessment to explore structural readiness (drugs, equipment, staff) complemented by in-depth interviews with maternity health service providers to understand process readiness (knowledge, attitudes, and practices as related to World Health Organization [WHO] guidance on PPH care). Main Outcome Measures Availability of essential structural components needed to support key PPH processes of care. Results In both countries, there was generally good structural readiness for PPH care. However, key common gaps included inade

    Urban-rural differences in immune responses to mycobacterial and tetanus vaccine antigens in a tropical setting: A role for helminths?

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    Several vaccines elicit lower efficacy or impaired immune responses in rural compared to urban settings, and in tropical low-income countries compared to high-income countries. An unresolved hypothesis is that immunomodulation by parasitic infections such as helminths (prevalent in rural tropical settings) contributes to suppression of vaccine responses. Among 1-17-year-old Ugandan residents of rural Schistosoma mansoni (Sm)-endemic islands and proximate urban communities with lower helminth exposure, we assessed plasma antibody and whole blood assay cytokine responses to tetanus toxoid (TT) and purified protein derivative of Mycobacterium tuberculosis (PPD). These were taken to represent recall responses to tetanus and BCG vaccination in infancy. PPD-specific responses are additionally induced by tuberculous and non-tuberculous mycobacterial exposure. Urban-rural comparisons showed that PPD-specific IFN-? and IL-13 and TT-specific IL-13 and IgG concentrations were lower in the rural setting, but that PPD-specific IgE concentrations were higher. Among rural participants, Sm infection was inversely associated with PPD-specific IFN-?, while nematode infection was positively associated with PPD-specific IgG. Among urban participants, Sm infection was positively associated with PPD-specific responses but inversely associated with TT-specific responses, while nematode infection was inversely associated with TT-specific IgG and IgG4, but no associations were observed with PPD-specific responses. Despite these associations, for the urban-rural comparisons there were no notable changes in test statistics after adjusting for current helminth infections, suggesting that helminths were not the sole explanation for the urban-rural differences observed. Helminths likely work in concert with other environmental exposures and operational factors to influence vaccine response

    Pathways to survival: Identifying psychosocial, family and service mechanisms to improve anti-retroviral adherence amongst adolescents living with HIV in Southern Africa: Final report of a project funded by the Nuffield Foundation

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    This report summarises the study findings and impact of a research project implemented jointly by the Universities of Oxford and Cape Town: Pathways to survival: identifying psychosocial, family and service mechanisms to improve anti-retroviral adherence amongst HIV-positive adolescents in Southern Africa (hereafter: Mzantsi Wakho – Your South Africa – its locally used name). The core source of funding for this high-impact and successful study came from the Nuffield Foundation. This study was also supported by supplementary co-funding. This study was the first to systematically examine potential causes of ART non-adherence and non-retention in HIV care amongst adolescents (10-19 years old) in Sub-Saharan Africa. Through additional funding awarded to the research team, additional research aims were also examined. The research project was implemented by a team of more than 50 researchers, including capacity-building for early-career academics and students in South Africa and the UK. In July 2015 – March 2018, this multi-disciplinary, mixed-methods team engaged with over 1,600 adolescents, 100 caregivers, and 120 healthcare providers through participatory workshops, in-depth interviews, ethnographic research, and three waves of quantitative surveys. In parallel, a clinic team engaged with over 79 public health facilities collecting data from clinic managers, healthcare providers, and patient files (with appropriate consent). With the essential support of the Nuffield Foundation, this study became the world’s largest longitudinal cohort of adolescents living with HIV. Mzantsi Wakho’s research team successfully followed up and maintained high retention rates across three time points, as research participants transitioned from early adolescence into youth. The study has already had major impact on policy, UN guidelines and programming for adolescents living with HIV

    Feasibility of a randomized clinical trial evaluating a community intervention for household tuberculosis child contact management in Cameroon and Uganda

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    Background One of the main barriers of the management of household tuberculosis child contacts is the necessity for parents to bring healthy children to the facility. We assessed the feasibility of a community intervention for tuberculosis (TB) household child contact management and the conditions for its evaluation in a cluster randomized controlled trial in Cameroon and Uganda. Methods We assessed three dimensions of feasibility using a mixed method approach: (1) recruitment capability using retrospective aggregated data from facility registers; (2) acceptability of the intervention using focus group discussions with TB patients and in-depth interviews with healthcare providers and community leaders; and (3) adaptation, integration, and resources of the intervention in existing TB services using a survey and discussions with stakeholders. Results Reaching the sample size is feasible in all clusters in 15 months with the condition of regrouping 2 facilities in the same cluster in Uganda due to decentralization of TB services. Community health worker (CHW) selection and training and simplified tools for contact screening, tolerability, and adherence of preventive therapy were key elements for the implementation of the community intervention. Healthcare providers and patients found the intervention of child contact investigations and TB preventive treatment management in the household acceptable in both countries due to its benefits (competing priorities, transport cost) as compared to facility-based management. TB stigma was present, but not a barrier for the community intervention. Visit schedule and team conduct were identified as key facilitators for the intervention. Conclusions This study shows that evaluating a community intervention for TB child contact management in a cluster randomized trial is feasible in Cameroon and Uganda. Trial registration Clini calTr ials. gov NCT03832023. Registered on February 6th 2019

    Cost-effectiveness and budget impact of decentralising childhood tuberculosis diagnosis in six high tuberculosis incidence countries: a mathematical modelling study

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    Background: The burden of childhood tuberculosis remains high globally, largely due to under-diagnosis. Decentralising childhood tuberculosis diagnosis services to lower health system levels could improve case detection, but there is little empirically based evidence on cost-effectiveness or budget impact. Methods: In this mathematical modelling study, we assessed the cost-effectiveness and budget impact of decentralising a comprehensive diagnosis package for childhood tuberculosis to district hospitals (DH-focused) or primary health centres (PHC-focused) compared to standard of care (SOC). The project was conducted in Cambodia, Cameroon, Côte d'Ivoire, Mozambique, Sierra Leone, and Uganda between August 1st, 2018 and September 30th, 2021. A mathematical model was developed to assess the health and economic outcomes of the intervention from a health system perspective. Estimated outcomes were tuberculosis cases, deaths, disability-adjusted life years (DALYs) and incremental cost-effectiveness ratios (ICERs). We also calculated the budget impact of nationwide implementation. The TB-Speed Decentralization study is registered with ClinicalTrials.gov, NCT04038632. Findings: For the DH-focused strategy versus SOC, ICERs ranged between 263(Cambodia)and263 (Cambodia) and 342 (Côte d'Ivoire) per DALY averted. For the PHC-focused strategy versus SOC, ICERs ranged between 477(Cambodia)and477 (Cambodia) and 599 (Côte d'Ivoire) per DALY averted. Results were sensitive to TB prevalence and the discount rate used. The additional costs of implementing the DH-focused strategy ranged between 12.8M(range10.816.4)(Cambodia)and12.8 M (range 10.8–16.4) (Cambodia) and 50.4 M (36.5–74.4) (Mozambique), and between 13.9M(12.615.6)(SierraLeone)and13.9 M (12.6–15.6) (Sierra Leone) and 134.6 M (127.1–143.0) (Uganda) for the PHC-focused strategy. Interpretation: The DH-focused strategy may be cost-effective in some countries, depending on the cost-effectiveness threshold used for policy making. Either intervention would require substantial early investment. Funding: Unitaid

    The effect of intensive praziquantel administration on vaccine-specific responses among schoolchildren in Ugandan schistosomiasis-endemic islands (POPVAC A): an open-label, randomised controlled trial

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    BackgroundVaccine responses differ between populations and are often impaired in rural and low-income settings. The reasons for this are not fully understood, but observational data suggest that the immunomodulating effects of parasitic helminths might contribute. We hypothesised that Schistosoma mansoni infection suppresses responses to unrelated vaccines, and that suppression could be reversed—at least in part—by intensive praziquantel administration.MethodsWe conducted an open-label, randomised controlled trial of intensive versus standard intervention against S mansoni among schoolchildren aged 9–17 years from eight primary schools in Koome islands, Uganda. Children were randomly allocated to either an intensive group or a standard group with a computer-generated 1:1 randomisation using permuted blocks sizes 4, 6, 8, and 10. Participants in the intensive group received three praziquantel doses (approximately 40 mg/kg) 2 weeks apart before first vaccination at week 0, and every 3 months thereafter. Participants in the standard group were given one dose of approximately 40 mg/kg praziquantel after the week 8 primary endpoint. Participants in both groups received the BCG vaccine (Serum Institute of India, Pune, India) at week 0; the yellow fever (Sanofi Pasteur, Lyon, France), oral typhoid (PaxVax, London, UK), and first human papillomavirus (HPV) vaccination (Merck, Rahway, NJ, USA) at week 4; and the HPV booster and tetanus–diphtheria vaccine (Serum Institute of India) at week 28. The primary outcome was vaccine response at week 8 (except for tetanus and diphtheria, which was assessed at week 52). The primary analysis population was participants who were infected with S mansoni at baseline, determined retrospectively using either plasma circulating anodic antigen (CAA) or stool PCR. The safety population comprised all randomly allocated participants. The trial was registered at the ISRCTN Registry (ISRCTN60517191) and is complete.FindingsBetween July 9 and Aug 14, 2019, we enrolled 478 participants, with 239 children per group. 276 (58%) participants were male and 202 (42%) participants were female. Among participants who were positive for S mansoni at baseline (171 [72%] in the intensive group and 164 [69%] in the standard group) intensive praziquantel administration significantly reduced pre-vaccination infection intensity (to median 30 CAA pg/mL [IQR 7–223] vs 1317 [243–8562], pS mansoni status at baseline) intensive praziquantel administration significantly improved week 8 BCG-specific IFNγ ELISpot response (1·20 [1·01–1·43], p=0·038). Recognised adverse effects of praziquantel were reported more frequently in the intensive group. There were no recorded serious adverse events in either group.InterpretationWe show evidence suggesting that praziquantel administration improves the BCG-specific cellular response, but not humoral responses to other vaccines. Despite observational evidence that helminths impair vaccine response, these results show minimal immediate benefits of reducing helminth burden. The effect of longer-term helminth control should be investigated.FundingUK Medical Research Council.TranslationFor the Luganda translation of the abstract see Supplementary Materials section.Host-parasite interactio

    Occurrence of anti-D alloantibodies among pregnant women in Kasese District, Western Uganda

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    Yona Mbalibulha,1 Enoch Muwanguzi,1 Godfrey R Mugyenyi,2 Bernard Natukunda1 1Department of Medical Laboratory Sciences, 2Department of Obstetrics and Gynecology, Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda Objectives: This study was undertaken to determine the distribution of ABO/RhD (rhesus D antigen) blood phenotypes, prevalence of anti-D alloantibodies, and the risk factors for alloimmunization among pregnant women in Kasese District, Western Uganda. Materials and methods: Ethylenediamine tetraacetic acid-containing plasma samples and serum samples were taken from pregnant women attending the antenatal clinic. The blood groups were identified using the microplate grouping method, while the presence of anti-D alloantibodies was detected by the indirect antiglobulin test (IAT). Data were also collected from the pregnant women on the risk factors associated with anti-D alloantibody formation. Results: Among the 726 participants, the blood group distribution was as follows: O: 356 (49.%); A: 190 (26.%); B: 152 (21%); and AB: 28 (4%). A total of 28 (3.86%) pregnant women were RhD negative. Anti-D alloantibodies were detected in 88 (12.1%) of the participants; and of these, 13 (14.8%) were RhD negative. Statistically significant risk factors for anti-D alloimmunization included miscarriage, stillbirth, and postpartum hemorrhage. Conclusion: Blood group O was the most common among the pregnant women in this study and the prevalence of Rh negativity was 3.8%. The frequency of anti-D alloimmunization among pregnant women in Kasese District was 12.12%, with 85.5% of these being RhD positive. Risk factors such as a history of stillbirths, miscarriages, and incidence of postpartum hemorrhage were significantly associated with anti-D alloimmunization. There is a need to routinely carry out antenatal blood grouping and IAT screening on pregnant women in Uganda to detect anti-D alloimmunization. Given the high prevalence of anti-D alloantibody formation among RhD-positive women, we recommend additional research studies on the role of autoimmunity among antigen-positive women, as well as the occurrence of RhD variants plus their implications on hemolytic disease of the fetus and newborn, in Uganda. Keywords: ABO/RhD blood groups, anti-D alloimmunization, indirect antiglobulin test, pregnant women, Western Ugand
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