Journal Article > ResearchFull Text
BMJ Glob Health. 2019 October 18; Volume 4 (Issue 5); e001855.; DOI:10.1136/bmjgh-2019-001855
Mbaye R, Gebeyehu R, Hossmann S, Mbarga NF, Bih-Neh E, et al.
BMJ Glob Health. 2019 October 18; Volume 4 (Issue 5); e001855.; DOI:10.1136/bmjgh-2019-001855
INTRODUCTION
Africa contributes little to the biomedical literature despite its high burden of infectious diseases. Global health research partnerships aimed at addressing Africa-endemic disease may be polarised. Therefore, we assessed the contribution of researchers in Africa to research on six infectious diseases.
METHODS
We reviewed publications on HIV and malaria (2013-2016), tuberculosis (2014-2016), salmonellosis, Ebola haemorrhagic fever and Buruli ulcer disease (1980-2016) conducted in Africa and indexed in the PubMed database using Preferred Reporting Items for Systematic Reviews and Meta-Analyses protocol. Papers reporting original research done in Africa with at least one laboratory test performed on biological samples were included. We studied African author proportion and placement per study type, disease, funding, study country and lingua franca.
RESULTS
We included 1182 of 2871 retrieved articles that met the inclusion criteria. Of these, 1109 (93.2%) had at least one Africa-based author, 552 (49.8%) had an African first author and 41.3% (n=458) an African last author. Papers on salmonellosis and tuberculosis had a higher proportion of African last authors (p<0.001) compared with the other diseases. Most of African first and last authors had an affiliation from an Anglophone country. HIV, malaria, tuberculosis and Ebola had the most extramurally funded studies (≥70%), but less than 10% of the acknowledged funding was from an African funder.
CONCLUSION
African researchers are under-represented in first and last authorship positions in papers published from research done in Africa. This calls for greater investment in capacity building and equitable research partnerships at every level of the global health community.
Africa contributes little to the biomedical literature despite its high burden of infectious diseases. Global health research partnerships aimed at addressing Africa-endemic disease may be polarised. Therefore, we assessed the contribution of researchers in Africa to research on six infectious diseases.
METHODS
We reviewed publications on HIV and malaria (2013-2016), tuberculosis (2014-2016), salmonellosis, Ebola haemorrhagic fever and Buruli ulcer disease (1980-2016) conducted in Africa and indexed in the PubMed database using Preferred Reporting Items for Systematic Reviews and Meta-Analyses protocol. Papers reporting original research done in Africa with at least one laboratory test performed on biological samples were included. We studied African author proportion and placement per study type, disease, funding, study country and lingua franca.
RESULTS
We included 1182 of 2871 retrieved articles that met the inclusion criteria. Of these, 1109 (93.2%) had at least one Africa-based author, 552 (49.8%) had an African first author and 41.3% (n=458) an African last author. Papers on salmonellosis and tuberculosis had a higher proportion of African last authors (p<0.001) compared with the other diseases. Most of African first and last authors had an affiliation from an Anglophone country. HIV, malaria, tuberculosis and Ebola had the most extramurally funded studies (≥70%), but less than 10% of the acknowledged funding was from an African funder.
CONCLUSION
African researchers are under-represented in first and last authorship positions in papers published from research done in Africa. This calls for greater investment in capacity building and equitable research partnerships at every level of the global health community.
Journal Article > CommentaryFull Text
BMJ Glob Health. 2019 August 31; Volume 4 (Issue 4); e001593.; DOI:10.1136/
bmjgh-2019-001593
McDiarmid M, Crestani R
BMJ Glob Health. 2019 August 31; Volume 4 (Issue 4); e001593.; DOI:10.1136/
bmjgh-2019-001593
Health workers were differentially infected during the 2014 to 2016 Ebola outbreak with an incidence rate of 30 to 44/1000 depending on their job duties, compared to the wider population’s rate of 1.4/1000, according to the WHO.
Médecins Sans Frontières (MSF) health workers had a much lower incidence rate of 4.3/1000, explained as the result of MSF’s ‘duty of care’ toward staff safety.
Duty of care is defined as an obligation to conform to certain standards of conduct for the protection of others against an unreasonable risk of harm.
The duty of care was operationalised through four actions: performing risk assessments prior to deployment, organising work and work practices to minimise exposure, providing extensive risk communication and training of staff and providing medical follow-up for staff exposures.
Adopting and consistently enforcing these broader, duty of care safety policies in deployed teams augments and fortifies standard infection prevention practices, creating a more protective, comprehensive safety programme.
Prioritising staff safety by taking such actions will help avoid the catastrophic loss of the health work force and assist in building resilient health systems.
Médecins Sans Frontières (MSF) health workers had a much lower incidence rate of 4.3/1000, explained as the result of MSF’s ‘duty of care’ toward staff safety.
Duty of care is defined as an obligation to conform to certain standards of conduct for the protection of others against an unreasonable risk of harm.
The duty of care was operationalised through four actions: performing risk assessments prior to deployment, organising work and work practices to minimise exposure, providing extensive risk communication and training of staff and providing medical follow-up for staff exposures.
Adopting and consistently enforcing these broader, duty of care safety policies in deployed teams augments and fortifies standard infection prevention practices, creating a more protective, comprehensive safety programme.
Prioritising staff safety by taking such actions will help avoid the catastrophic loss of the health work force and assist in building resilient health systems.
Journal Article > ReviewFull Text
BMJ Glob Health. 2023 February 1; Volume 8 (Issue 2); e011431.; DOI:10.1136/bmjgh-2022-011431
Evaborhene NA, Udokanma EE, Adebisi YA, Okorie CE, Kafuko Z, et al.
BMJ Glob Health. 2023 February 1; Volume 8 (Issue 2); e011431.; DOI:10.1136/bmjgh-2022-011431
The call to strengthen global health governance against future outbreaks through a binding treaty on pandemics has attracted global attention and opinion. Yet, few of these perspectives have reflected the voices from early career global health professionals in Africa. We share our perspectives on the Pandemic Treaty, and specifically our scepticism on the limitations of the current top-down approach of the treaty, and the need for the treaty to centre equity, transparency and fairness to ensure equitable and effective cooperation in response to global health emergencies. We also highlight the challenges intergovernmental organisations for health faced in coordinating nation states during the COVID-19 crisis and how a Pandemic Treaty would address these challenges. We argue that lessons from the COVID-19 pandemic provide a critical opportunity to strengthen regional institutions in Africa—particularly in a multipolar world with huge disparities in power and resources. However, addressing these challenges and achieving this transformation may not be easy. Fiscal space in many countries remains constrained now more than ever. New tools such as the Pandemic Fund should be designed in ways that consider the specific needs and capacities of countries. Therefore, strengthening countries’ capacities overall requires an increase in domestic investment. This paper calls for wider structural reforms such as debt restructuring among other tools to strengthen countries’ capacities.
Journal Article > ResearchFull Text
BMJ Glob Health. 2022 December 1; Volume 7 (Issue 12); e009674.; DOI:10.1136/bmjgh-2022-009674
Van Bortel W, Mariën J, Jacobs BKM, Sinzinkayo D, Sinarinzi P, et al.
BMJ Glob Health. 2022 December 1; Volume 7 (Issue 12); e009674.; DOI:10.1136/bmjgh-2022-009674
BACKGROUND
Long-lasting insecticidal nets (LLINs) are one of the key interventions in the global fight against malaria. Since 2014, mass distribution campaigns of LLINs aim for universal access by all citizens of Burundi. In this context, we assess the impact of LLINs mass distribution campaigns on malaria incidence, focusing on the endemic highland health districts. We also explored the possible correlation between observed trends in malaria incidence with any variations in climate conditions.
METHODS
Malaria cases for 2011—2019 were obtained from the National Health Information System. We developed a generalised additive model based on a time series of routinely collected data with malaria incidence as the response variable and timing of LLIN distribution as an explanatory variable to investigate the duration and magnitude of the LLIN effect on malaria incidence. We added a seasonal and continuous-time component as further explanatory variables, and health district as a random effect to account for random natural variation in malaria cases between districts.
RESULTS
Malaria transmission in Burundian highlands was clearly seasonal and increased non-linearly over the study period. Further, a fast and steep decline of malaria incidence was noted during the first year after mass LLIN distribution (p<0.0001). In years 2 and 3 after distribution, malaria cases started to rise again to levels higher than before the control intervention.
CONCLUSION
This study highlights that LLINs did reduce the incidence in the first year after a mass distribution campaign, but in the context of Burundi, LLINs lost their impact after only 1 year.
Long-lasting insecticidal nets (LLINs) are one of the key interventions in the global fight against malaria. Since 2014, mass distribution campaigns of LLINs aim for universal access by all citizens of Burundi. In this context, we assess the impact of LLINs mass distribution campaigns on malaria incidence, focusing on the endemic highland health districts. We also explored the possible correlation between observed trends in malaria incidence with any variations in climate conditions.
METHODS
Malaria cases for 2011—2019 were obtained from the National Health Information System. We developed a generalised additive model based on a time series of routinely collected data with malaria incidence as the response variable and timing of LLIN distribution as an explanatory variable to investigate the duration and magnitude of the LLIN effect on malaria incidence. We added a seasonal and continuous-time component as further explanatory variables, and health district as a random effect to account for random natural variation in malaria cases between districts.
RESULTS
Malaria transmission in Burundian highlands was clearly seasonal and increased non-linearly over the study period. Further, a fast and steep decline of malaria incidence was noted during the first year after mass LLIN distribution (p<0.0001). In years 2 and 3 after distribution, malaria cases started to rise again to levels higher than before the control intervention.
CONCLUSION
This study highlights that LLINs did reduce the incidence in the first year after a mass distribution campaign, but in the context of Burundi, LLINs lost their impact after only 1 year.
Journal Article > ResearchFull Text
BMJ Glob Health. 2020 November 1; Volume 5 (Issue Suppl 1); e002060.; DOI:10.1136/bmjgh-2019-002060
Aboubakar S, Evers ES, Kobeissi L, Francis L, Najjemba R, et al.
BMJ Glob Health. 2020 November 1; Volume 5 (Issue Suppl 1); e002060.; DOI:10.1136/bmjgh-2019-002060
BACKGROUND
Significant global gains in sexual, reproductive, maternal, newborn, child and adolescent health and nutrition (SRMNCAH&N) will be difficult unless conflict settings are adequately addressed. We aimed to determine the amount, scope and quality of publicly available guidance documents, to characterise the process by which agencies develop their guidance and to identify gaps in guidance on SRMNCAH&N promotion in conflicts.
METHODS
We identified guidance documents published between 2008 and 2018 through English-language Internet sites of humanitarian response organisations, reviewed them for their scope and assessed their quality with the AGREE II (Appraisal of Guidelines for REsearch and Evaluation II) tool. Additionally, we interviewed 22 key informants on guidance development, dissemination processes, perceived guidance gaps and applicability.
FINDINGS
We identified 105 conflict-relevant guidance documents from 75 organisations. Of these, nine were specific to conflicts, others were applicable also to other humanitarian settings. Fifteen documents were technical normative guidelines, others were operational guides (67), descriptive documents (21) or advice on legal, human rights or ethics questions (2). Nutrition was the most addressed health topic, followed by communicable diseases and violence. The documents rated high quality in their ‘scope and purpose’ and ‘clarity of presentation’ and low for ‘rigour of development’ and ‘editorial independence’. Key informants reported end user need as the primary driver for guideline development and WHO technical guidelines as their main evidence base. Insufficient local contextualisation, lack of inter-agency coordination and lack of systematic implementation were considered problems in guideline development. Several guidance gaps were noted, including abortion care, newborn care, early child development, mental health, adolescent health beyond sexual and reproductive health and non-communicable diseases.
INTERPRETATION
Organisations are motivated and actively producing guidance for SRMNCAH&N promotion in humanitarian settings, but few documents address conflicts specifically and there are important guidance gaps. Improved inter-organisation collaboration for guidance on SRMNCAH&N promotion in conflicts and other humanitarian settings is needed.
Significant global gains in sexual, reproductive, maternal, newborn, child and adolescent health and nutrition (SRMNCAH&N) will be difficult unless conflict settings are adequately addressed. We aimed to determine the amount, scope and quality of publicly available guidance documents, to characterise the process by which agencies develop their guidance and to identify gaps in guidance on SRMNCAH&N promotion in conflicts.
METHODS
We identified guidance documents published between 2008 and 2018 through English-language Internet sites of humanitarian response organisations, reviewed them for their scope and assessed their quality with the AGREE II (Appraisal of Guidelines for REsearch and Evaluation II) tool. Additionally, we interviewed 22 key informants on guidance development, dissemination processes, perceived guidance gaps and applicability.
FINDINGS
We identified 105 conflict-relevant guidance documents from 75 organisations. Of these, nine were specific to conflicts, others were applicable also to other humanitarian settings. Fifteen documents were technical normative guidelines, others were operational guides (67), descriptive documents (21) or advice on legal, human rights or ethics questions (2). Nutrition was the most addressed health topic, followed by communicable diseases and violence. The documents rated high quality in their ‘scope and purpose’ and ‘clarity of presentation’ and low for ‘rigour of development’ and ‘editorial independence’. Key informants reported end user need as the primary driver for guideline development and WHO technical guidelines as their main evidence base. Insufficient local contextualisation, lack of inter-agency coordination and lack of systematic implementation were considered problems in guideline development. Several guidance gaps were noted, including abortion care, newborn care, early child development, mental health, adolescent health beyond sexual and reproductive health and non-communicable diseases.
INTERPRETATION
Organisations are motivated and actively producing guidance for SRMNCAH&N promotion in humanitarian settings, but few documents address conflicts specifically and there are important guidance gaps. Improved inter-organisation collaboration for guidance on SRMNCAH&N promotion in conflicts and other humanitarian settings is needed.
Journal Article > CommentaryFull Text
BMJ Glob Health. 2021 October 25; Volume 6 (Issue 10); e006913.; DOI:10.1136/bmjgh-2021-006913
Martins D, Ribeiro I, Potet J
BMJ Glob Health. 2021 October 25; Volume 6 (Issue 10); e006913.; DOI:10.1136/bmjgh-2021-006913
SUMMARY POINTS
• Despite inherent differences, Snakebite Envenoming and COVID-19 have much in common in terms of research and development (R&D) challenges and opportunities.
• Both crises require a diversified portfolio of R&D solutions, ranging from diagnostics to treatments, that can effectively work and be accessible in different resource settings.
• Collaborative clinical research and streamlined regulatory pathways are critical to accelerate these candidates in the R&D pipeline.
• Transformative progress is possible with a concerted approach that aligns strong political will, coordinated financing and the needs of the most marginalised communities.
• Despite inherent differences, Snakebite Envenoming and COVID-19 have much in common in terms of research and development (R&D) challenges and opportunities.
• Both crises require a diversified portfolio of R&D solutions, ranging from diagnostics to treatments, that can effectively work and be accessible in different resource settings.
• Collaborative clinical research and streamlined regulatory pathways are critical to accelerate these candidates in the R&D pipeline.
• Transformative progress is possible with a concerted approach that aligns strong political will, coordinated financing and the needs of the most marginalised communities.
Journal Article > ResearchFull Text
BMJ Glob Health. 2020 April 14; Volume 5 (Issue 4); e002141.; DOI:10.1136/bmjgh-2019-002141.
Farley ES, Oyemakinde MJ, Schuurmans J, Ariti C, Saleh F, et al.
BMJ Glob Health. 2020 April 14; Volume 5 (Issue 4); e002141.; DOI:10.1136/bmjgh-2019-002141.
BACKGROUND
Noma, a rapidly progressing infection of the oral cavity, mainly affects children. The true burden is unknown. This study reports estimated noma prevalence in children in northwest Nigeria.
METHODS
Oral screening was performed on all ≤15 year olds, with caretaker consent, in selected households during this cross-sectional survey. Noma stages were classified using WHO criteria and caretakers answered survey questions. The prevalence of noma was estimated stratified by age group (0–5 and 6–15 years). Factors associated with noma were estimated using logistic regression.
RESULTS
A total of 177 clusters, 3499 households and 7122 children were included. In this sample, 4239 (59.8%) were 0–5 years and 3692 (52.1%) were female. Simple gingivitis was identified in 3.1% (n=181; 95% CI 2.6 to 3.8), acute necrotising gingivitis in 0.1% (n=10; CI 0.1 to 0.3) and oedema in 0.05% (n=3; CI 0.02 to 0.2). No cases of late-stage noma were detected. Multivariable analysis in the group aged 0–5 years showed having a well as the drinking water source (adjusted odds ratio (aOR) 2.1; CI 1.2 to 3.6) and being aged 3–5 years (aOR 3.9; CI 2.1 to 7.8) was associated with being a noma case. In 6–15 year olds, being male (aOR 1.5; CI 1.0 to 2.2) was associated with being a noma case and preparing pap once or more per week (aOR 0.4; CI 0.2 to 0.8) was associated with not having noma. We estimated that 129120 (CI 105294 to 1 52 947) individuals <15 years of age would have any stage of noma at the time of the survey within the two states. Most of these cases (93%; n=120 082) would be children with simple gingivitis.
CONCLUSIONS
Our study identified a high prevalence of children at risk of developing advanced noma. This disease is important but neglected and therefore merits inclusion in the WHO neglected tropical diseases list.
Noma, a rapidly progressing infection of the oral cavity, mainly affects children. The true burden is unknown. This study reports estimated noma prevalence in children in northwest Nigeria.
METHODS
Oral screening was performed on all ≤15 year olds, with caretaker consent, in selected households during this cross-sectional survey. Noma stages were classified using WHO criteria and caretakers answered survey questions. The prevalence of noma was estimated stratified by age group (0–5 and 6–15 years). Factors associated with noma were estimated using logistic regression.
RESULTS
A total of 177 clusters, 3499 households and 7122 children were included. In this sample, 4239 (59.8%) were 0–5 years and 3692 (52.1%) were female. Simple gingivitis was identified in 3.1% (n=181; 95% CI 2.6 to 3.8), acute necrotising gingivitis in 0.1% (n=10; CI 0.1 to 0.3) and oedema in 0.05% (n=3; CI 0.02 to 0.2). No cases of late-stage noma were detected. Multivariable analysis in the group aged 0–5 years showed having a well as the drinking water source (adjusted odds ratio (aOR) 2.1; CI 1.2 to 3.6) and being aged 3–5 years (aOR 3.9; CI 2.1 to 7.8) was associated with being a noma case. In 6–15 year olds, being male (aOR 1.5; CI 1.0 to 2.2) was associated with being a noma case and preparing pap once or more per week (aOR 0.4; CI 0.2 to 0.8) was associated with not having noma. We estimated that 129120 (CI 105294 to 1 52 947) individuals <15 years of age would have any stage of noma at the time of the survey within the two states. Most of these cases (93%; n=120 082) would be children with simple gingivitis.
CONCLUSIONS
Our study identified a high prevalence of children at risk of developing advanced noma. This disease is important but neglected and therefore merits inclusion in the WHO neglected tropical diseases list.
Journal Article > ResearchFull Text
BMJ Glob Health. 2019 November 20; Volume 4; DOI:10.12688/wellcomeopenres.15579.1
Kimathi D, Aitana J, Bejon P, Grais RF, Warimwe GM, et al.
BMJ Glob Health. 2019 November 20; Volume 4; DOI:10.12688/wellcomeopenres.15579.1
Introduction: Yellow fever is endemic in specific regions of sub-Saharan Africa and the Americas, with recent epidemics occurring on both continents. The yellow fever vaccine is effective, affordable and safe, providing life-long immunity following a single dose vaccination. However, the vaccine production process is slow and cannot be readily scaled up during epidemics. This has led the World Health Organization (WHO) to recommend the use of fractional doses as a dose-sparing strategy during epidemics, but there are no randomized controlled trials of fractional yellow fever vaccine doses in Africa.
Methods and analysis: We will recruit healthy adult volunteers, adults living with HIV, and children to a series of randomized controlled trials aiming to determine the immunogenicity and safety of fractional vaccine doses in comparison to the standard vaccine dose. The trials will be conducted across two sites; Kilifi, Kenya and Mbarara, Uganda. Recruited participants will be randomized to receive fractional or standard doses of yellow fever vaccine. Scheduled visits will include blood collection for serum and peripheral blood mononuclear cells (PBMCs) before vaccination and on various days – up to 2 years – post-vaccination. The primary outcome is the rate of seroconversion as measured by the plaque reduction neutralization test (PRNT50) at 28 days post-vaccination. Secondary outcomes include antibody titre changes, longevity of the immune response, safety assessment using clinical data, the nature and magnitude of the cellular immune response and post-vaccination control of viremia by vaccine dose.
Ethics and dissemination: The clinical trial protocols have received approval from the relevant institutional ethics and regulatory review committees in Kenya and Uganda, and the WHO Ethics Review Committee. The research findings will be disseminated through open-access publications and presented at relevant conferences and workshops.
Methods and analysis: We will recruit healthy adult volunteers, adults living with HIV, and children to a series of randomized controlled trials aiming to determine the immunogenicity and safety of fractional vaccine doses in comparison to the standard vaccine dose. The trials will be conducted across two sites; Kilifi, Kenya and Mbarara, Uganda. Recruited participants will be randomized to receive fractional or standard doses of yellow fever vaccine. Scheduled visits will include blood collection for serum and peripheral blood mononuclear cells (PBMCs) before vaccination and on various days – up to 2 years – post-vaccination. The primary outcome is the rate of seroconversion as measured by the plaque reduction neutralization test (PRNT50) at 28 days post-vaccination. Secondary outcomes include antibody titre changes, longevity of the immune response, safety assessment using clinical data, the nature and magnitude of the cellular immune response and post-vaccination control of viremia by vaccine dose.
Ethics and dissemination: The clinical trial protocols have received approval from the relevant institutional ethics and regulatory review committees in Kenya and Uganda, and the WHO Ethics Review Committee. The research findings will be disseminated through open-access publications and presented at relevant conferences and workshops.
Journal Article > CommentaryFull Text
BMJ Glob Health. 2017 January 25; Volume 2 (Issue Suppl 1); DOI:10.1136/bmjgh-2016-000238
Liu J
BMJ Glob Health. 2017 January 25; Volume 2 (Issue Suppl 1); DOI:10.1136/bmjgh-2016-000238
Journal Article > ResearchFull Text
BMJ Glob Health. 2021 August 1; Volume 6 (Issue 8); e006736.
Carter SE, Ahuka-Mundeke S, Pfaffmann Zambruni J, Navarro-Colorado C, van Kleef E, et al.
BMJ Glob Health. 2021 August 1; Volume 6 (Issue 8); e006736.
The emerging field of outbreak analytics calls attention to the need for data from multiple sources to inform evidence-based decision making in managing infectious diseases outbreaks. To date, these approaches have not systematically integrated evidence from social and behavioural sciences. During the 2018-2020 Ebola outbreak in Eastern Democratic Republic of the Congo, an innovative solution to systematic and timely generation of integrated and actionable social science evidence emerged in the form of the Cellulle d'Analyse en Sciences Sociales (Social Sciences Analytics Cell) (CASS), a social science analytical cell. CASS worked closely with data scientists and epidemiologists operating under the Epidemiological Cell to produce integrated outbreak analytics (IOA), where quantitative epidemiological analyses were complemented by behavioural field studies and social science analyses to help better explain and understand drivers and barriers to outbreak dynamics. The primary activity of the CASS was to conduct operational social science analyses that were useful to decision makers. This included ensuring that research questions were relevant, driven by epidemiological data from the field, that research could be conducted rapidly (ie, often within days), that findings were regularly and systematically presented to partners and that recommendations were co-developed with response actors. The implementation of the recommendations based on CASS analytics was also monitored over time, to measure their impact on response operations. This practice paper presents the CASS logic model, developed through a field-based externally led consultation, and documents key factors contributing to the usefulness and adaption of CASS and IOA to guide replication for future outbreaks.