An observational analysis of the impact of indoor residual spraying in two distinct contexts of Burkina Faso.

BACKGROUND: Indoor residual spraying (IRS) is a cornerstone malaria control intervention in Burkina Faso. From 2018 to 2021, non-pyrethroid IRS was implemented annually in two regions of Burkina Faso with distinct malaria transmission patterns, concurrently with annual seasonal malaria chemoprevention (SMC), and a mass insecticide-treated net (ITN) distribution in 2019. METHODS: A retrospective quasi-experimental approach was used to evaluate the impact of the 2018, 2020, and 2021 IRS campaigns on routinely reported confirmed malaria case incidence at health facilities. The 2019 campaign was excluded due to lack of data reporting during a health sector strike. Controlled interrupted time series models were fit to detect changes in level and trend in malaria case incidence rates following each IRS campaign when compared to the baseline period 24-months before IRS. IRS districts Solenzo (Sudano-Sahelien climate), and Kampti (tropical climate) were compared with neighbouring control districts and the analyses were stratified by region. Modelled health facility catchment population estimates based on travel time to health facilities and weighted by non-malaria outpatient visits were used as an offset. The study period encompassed July 2016 through June 2022, excluding July 2018 to June 2019. RESULTS: District-level population and structure coverage achieved by IRS campaigns was greater than 85% in 2018, 2020, and 2021 in Solenzo and Kampti. In Solenzo a significant difference in malaria case incidence rates was detected after the 2018 campaign (IRR = 0.683; 95% CI 0.564-0.827) when compared to the control district. The effect was not detected following the 2020 or 2021 IRS campaigns. In Kampti, estimated malaria incidence rates were between 36 and 38% lower than in the control district following all three IRS campaigns compared to the baseline period. CONCLUSIONS: Implementation of IRS in Kampti, a tropical region of Burkina Faso, appeared to have a consistent significant beneficial impact on malaria case rates. An initial positive impact in Solenzo after the first IRS campaign was not sustained in the successive evaluated IRS campaigns. This study points to a differential effect of IRS in different malaria transmission settings and in combination with ITN and SMC implementation.

Wolbachia confers protection against the entomopathogenic fungus Metarhizium pingshaense in African Aedes aegypti.

Symbiotic and pathogenic microorganisms such as bacteria and fungi represent promising alternatives to chemical insecticides to respond to the rapid increase of insecticide resistance and vector-borne disease outbreaks. This study investigated the interaction of two strains of Wolbachia, wAlbB and wAu, with the natural entomopathogenic fungi from Burkina Faso Metarhizium pingshaense, known to be lethal against Anopheles mosquitoes. In addition to showing the potential of Metarhizium against African Aedes aegypti wild-type populations, our study shows that the wAlbB and wAu provide a protective advantage against entomopathogenic fungal infections. Compared to controls, fungal-infected wAu and wAlbB-carrying mosquitoes showed higher longevity, without any significant impact on fecundity and fertility phenotypes. This study provides new insights into the complex multipartite interaction among the mosquito host, the Wolbachia endosymbiont and the entomopathogenic fungus that might be employed to control mosquito populations. Future research should investigate the fitness costs of Wolbachia, as well as its spread and prevalence within mosquito populations. Additionally, evaluating the impact of Wolbachia on interventions involving Metarhizium pingshaense through laboratory and semi-field population studies will provide valuable insights into the effectiveness of this combined approach.

Seroprevalence and risk factors for SARS-CoV-2 infection in middle-sized cities of Burkina Faso: A descriptive cross-sectional study.

BACKGROUND: Since March 2020, COVID-19 has evolved from a localized outbreak to a global pandemic. We assessed the seroprevalence of COVID-19 in three towns in the Centre Sud region of Burkina Faso. METHODS: A population-based cross-sectional survey was conducted in three middle-sized cities in Burkina Faso's Centre Sud region, from June to July 2021. Subjects aged 16 or over at the time of the survey were considered for this seroprevalence study. The Biosynex COVID-19 BSS rapid test was used to detect immunoglobulin G (IgG) and immunoglobulin M (IgM) against SARS-CoV-2. A standardized questionnaire was also administered to collect additional information. RESULTS: A total of 2449 eligible participants (age ≥ 16 years) were identified. Serological tests for COVID-19 were performed in 2155 individuals, of which 2143 valid tests were retained and analyzed. Out of the entire sample, 246 positive tests were observed, corresponding to a prevalence of 11.48%. Prevalence was 9.35% (58 cases) in Kombissiri, 12.86% (80 cases) in Manga and 11.99% (108 cases) in Pô. By gender, 13.37% of women (164 cases) tested positive, and 8.95% of men (82 cases). Women accounted for 66.67% of all positive test subjects. The results from the multivariate analysis show a significantly higher seroprevalence in women (p = 0.007), people over 55 years old (p = 0.004), overweight people (p = 0.026) and those with drinking water sources at home (p = 0.013). CONCLUSIONS: The results of this study show that the COVID-19 virus also circulates in the population of middle-sized cities in Burkina Faso, far more than officially reported by the information service of the government of Burkina Faso, given the lack of systematic testing in the general population in the country. The study also highlighted the greater vulnerability of women, older and overweight individuals to the epidemic. The preventive measures put in place to fight the pandemic must take these different factors into account.

Hyperimmune malarial splenomegaly in a malaria-endemic area of southwest Burkina Faso: case of Bobo-Dioulasso.

INTRODUCTION: Hyperreactive malarial splenomegaly (HMS) is one of the main causes of massive splenomegaly in malaria-endemic zones. Diagnosis is often challenging in Bobo-Dioulasso. This study aimed to describe the clinical and socio-demographic profile, and the reasons for delay in the diagnosis of HMS cases recorded in the Medicine and Medical Specialties wards of Souro Sanou Teaching hospital. METHODS: A retrospective descriptive study was conducted from August 2022 by focusing on HMS cases diagnosed in the Infectious Diseases and Clinical Hematology wards of Souro Sanou Teaching Hospital. RESULTS: Overall, 65 patients met our inclusion criteria over the 12-year period. Burkinabe nationals and have been residing in Burkina Faso since their birth. 79% (79%) of the patients were seen for medical consultation with the reason for consultation being a voluminous mass in the left hypochondrium. Indigence, self-medication, and lack of information were essential elements in late diagnosis of HMS in Bobo-Dioulasso. All patients were treated with a single tablet of Artemether (80 mg) and Lumefantrine (480 mg) in the morning and evening for 3 days, followed by sulfadoxine-pyrimethamine per week. Nine months later, patients were clinically asymptomatic. CONCLUSION: This study provides a database on hyperreactive malarial splenomegaly (HMS) in the south-west region of Burkina Faso. Rapid and accurate diagnosis of the disease and appropriate use of effective antimalarial drugs would significantly reduce the burden of HMS in Sub-Saharan African countries.

Burden and epidemiology of Campylobacter species in acute enteritis cases in Burkina Faso.

BACKGROUND: Campylobacter spp. is a significant etiological agent of bacterial gastroenteritis globally. In Burkina Faso (BFA), the actual impact of this pathogen on gastroenteritis is considerably underestimated, primarily due to inadequate surveillance systems. OBJECTIVES: This study aimed to investigate the proportion of Campylobacter species responsible for acute gastroenteritis among patients of all ages in urban and rural areas of BFA, using molecular biology techniques. STUDY DESIGN & METHODS: Between 2018 and 2021, faecal specimens were obtained from 1,295 individuals presenting with acute gastroenteritis. These samples underwent screening for the Campylobacter coli/jejuni/lari complex utilizing real-time polymerase chain reaction (PCR) assays. Subsequently, positive samples were subjected to species-level differentiation through the application of species-specific primers. RESULTS: Campylobacter spp. was detected in 25.0% (324/1,295) of the samples analysed. The majority of positive samples (95%, 308/324) were obtained from children under 5 years of age. Species identification was performed on a subset of 114 isolates, revealing 51 Campylobacter jejuni, 10 Campylobacter coli, and 53 Campylobacter isolates that remained unspeciated. CONCLUSIONS: This study reveals a significant prevalence of Campylobacter species among patients with acute gastroenteritis, with a particularly high incidence observed in children under 5 years of age. Based on these findings, the implementation of routine Campylobacter surveillance in public health laboratories is strongly recommended to better monitor and address this health concern.

Utilization of novel molecular multiplex methods for the detection and, epidemiological surveillance of dengue virus serotypes and chikungunya virus in Burkina Faso, West Africa.

BACKGROUND: Dengue virus (DENV) and Chikungunya virus (CHIKV) are major arboviruses that are transmitted to humans by Aedes aegypti (A. aegypti) and Aedes Albopictus (A. Albopictus) mosquitoes. In absence of specific antivirals and vaccine against these two viruses, prompt diagnosis of acute infections and robust surveillance for outbreak identification remain crucial. Therefore, rapid, robust, high-throughput, accessible, and low-cost assays are essential for endemic countries. This study evaluated our recently developed multiplex RT-PCR and RT-qPCR assays to screen for DENV1-4 and CHIKV circulation in Burkina Faso. METHODS AND RESULTS: This study, conducted between June to August 2023, enrolled patients with suspected arbovirus infection presenting at healthcare facilities in three Burkina Faso cities (Bobo-Dioulasso, Houndé, and Ouagadougou). Serum samples were collected and screened for DENV serotypes and CHIKV using our newly multiplex RT-PCR and RT-q PCR techniques recently developed. A total of 408 patients (age median = 33, range from 3 to 84 years) participated in this study. Of these, 13.7% (56/408) had DENV infection; DENV-1 was 32.1% (18/56) and DENV-3 was 67.9% (38/56). DENV-2, DENV-4 and CHIKV were not detected. CONCLUSIONS: This study demonstrates the effectiveness of our molecular methods for DENV detection and serotyping in Burkina Faso. The affordability of our methods makes them valuable for implementing widespread routine clinical diagnostics or arbovirus surveillance in resource-limited settings.

Artificial Intelligence System for Automated Breast Cancer Detection in Pathology in Burkina Faso: Methodology Overview.

The introduction of artificial intelligence (AI) in breast cancer diagnosis in Burkina Faso represents a significant advancement in the field of healthcare. Faced with the public health issue posed by breast cancer, this study focuses on the use of AI to improve early and accurate detection of this disease from histopathological images. For the implementation of the system, we utilized a customized architecture tailored to our context where image quality is low, based on the convolutional neural networks algorithm from the Keras library of TensorFlow. Subsequently, we developed a platform to facilitate its use. This article aims to present the methodology that was used and the results obtained.

Comparative Analysis of Artificial Intelligence Algorithms for Breast Cancer Detection from Pathological Image in Burkina Faso.

Artificial Intelligence (AI) has revolutionized many fields, including medical imaging. This revolution has enabled the digitization of medical images, the development of algorithms allowing the use of data captured in natural language, and deep learning, enabling the development of algorithms for automatic processing of medical images from massive medical data. In Burkina Faso, early and accurate detection of breast cancer is a significant challenge due to limited resources and lack of specialized expertise. In this article, we examine the effectiveness of different artificial intelligence algorithms for breast cancer detection from pathological image.

Impact of Terrorism on the Use of Healthcare Services in Burkina Faso Between 2015 and 2022.

Burkina Faso has been facing a security crisis due to terrorism since 2015. This study aims to assess the impact of the attacks on the use of healthcare services. This is a secondary study on data from the country's health data warehouse and the ACLED security data warehouse. After a description, generalized additive models were used to assess the impact of attacks on the use of health services. Between January 2015 and December 2022, 2449 kidnap/disappearance attacks, armed attacks, bombings and landmine explosions were perpetrated, causing 4965 deaths. The Sahel region was the most targeted (36.37% of attacks and 50.57% of deaths). Only population density had a significant impact on the use of health services (p<5%). The models were valid. Our study has shown that, despite the persistent insecurity in Burkina Faso, people are resilient and, above all, continue to seek out the most important healthcare services. It is therefore important to work to maintain the supply of these services.

Longitudinal survey of insecticide resistance in a village of central region of Burkina Faso reveals co-occurrence of 1014F, 1014S and 402L mutations in Anopheles coluzzii and Anopheles arabiensis.

BACKGROUND: Pyrethroid resistance is one of the major threats for effectiveness of insecticide-treated bed nets (ITNs) in malaria vector control. Genotyping of mutations in the voltage gated sodium channel (VGSC) gene is widely used to easily assess the evolution and spread of pyrethroid target-site resistance among malaria vectors. L1014F and L1014S substitutions are the most common and best characterized VGSC mutations in major African malaria vector species of the Anopheles gambiae complex. Recently, an additional substitution involved in pyrethroid resistance, i.e. V402L, has been detected in Anopheles coluzzii from West Africa lacking any other resistance alleles at locus 1014. The evolution of target-site resistance mutations L1014F/S and V402L was monitored in An. coluzzii and Anopheles arabiensis specimens from a Burkina Faso village over a 10-year range after the massive ITN scale-up started in 2010. METHODS: Anopheles coluzzii (N = 300) and An. arabiensis (N = 362) specimens collected both indoors and outdoors by different methods (pyrethrum spray catch, sticky resting box and human landing collections) in 2011, 2015 and 2020 at Goden village were genotyped by TaqMan assays and sequencing for the three target site resistance mutations; allele frequencies were statistically investigated over the years. RESULTS: A divergent trend in resistant allele frequencies was observed in the two species: 1014F decreased in An. coluzzii (from 0.76 to 0.52) but increased in An. arabiensis (from 0.18 to 0.70); 1014S occurred only in An. arabiensis and slightly decreased over time (from 0.33 to 0.23); 402L increased in An. coluzzii (from 0.15 to 0.48) and was found for the first time in one An. arabiensis specimen. In 2020 the co-occurrence of different resistance alleles reached 43% in An. coluzzii (alleles 410L and 1014F) and 32% in An. arabiensis (alleles 1014F and 1014S). CONCLUSIONS: Overall, an increasing level of target-site resistance was observed among the populations with only 1% of the two malaria vector species being wild type at both loci, 1014 and 402, in 2020. This, together with the co-occurrence of different mutations in the same specimens, calls for future investigations on the possible synergism between resistance alleles and their phenotype to implement local tailored intervention strategies.

A qualitative exploration to inform an oral health training for disability care workers in Burkina Faso.

AIM: To explore enablers and barriers to the creation of an oral health training for care workers at specialized centres for children with disabilities in Ouagadougou. DESIGN: This was a formative study informed by the Theoretical Domains Framework using qualitative methods. METHODS: Qualitative observations and 14 semi-structured interviews were conducted with care workers from six specialized centres for disability. RESULTS: Carer workers emphasized that a successful oral health training must account for available resources and competencies in each specific centre. Part of the training must be dedicated to oral hygiene targeted for people with disabilities and provide knowledge about risk factor management. Care workers must be empowered through the training with practical skills and tools to manage regular toothbrushing and identify oral health needs of their dependents. CONCLUSION: This study gathered valuable and unique perspectives about the roles of care workers of children with disabilities in Ouagadougou and underscores the need for improving access to oral health and care services for children with disabilities in low-resourced settings. IMPLICATIONS FOR PATIENT CARE: Teams planning oral health promotion activities in low resourced settings for vulnerable population groups can benefit from the methodology and results of this research for ensuring their interventions are appropriate and relevant. IMPACT: This is a unique field study conducted in a scarcely researched area of caregiving practices for children with disabilities in a low-income country, Burkina Faso. Results from the disability centre observations and interviews with local caregivers are of great value to any team planning health projects in similar low-resourced settings. Psychiatric and mental health nursing practices are highly context-dependent, thus using proposed qualitative methods can help to ensure that planned interventions are appropriate and relevant. PATIENT OR PUBLIC CONTRIBUTION: There was no patient contribution in this study.

Prevalence of asymptomatic malaria at the communal level in Burkina Faso: an application of the small area estimation approach.

BACKGROUND: In malaria-endemic countries, asymptomatic carriers of plasmodium represent an important reservoir for malaria transmission. Estimating the burden at a fine scale and identifying areas at high risk of asymptomatic carriage are important to guide malaria control strategies. This study aimed to estimate the prevalence of asymptomatic carriage at the communal level in Burkina Faso, the smallest geographical entity from which a local development policy can be driven. METHODS: The data used in this study came from several open sources: the 2018 Multiple Indicator Cluster Survey on Malaria and the 2019 general census of the population data and environmental. The analysis involved a total of 5489 children under 5 from the malaria survey and 293,715 children under 5 from the census. The Elbers Langjouw and Langjouw (ELL) approach is used to estimate the prevalence. This approach consists of including data from several sources (mainly census and survey data) in a statistical model to obtain predictive indicators at a sub-geographical level, which are not measured in the population census. The method achieves this by finding correlations between common census variables and survey data. FINDINGS: The findings suggest that the spatial distribution of the prevalence of asymptomatic carriage is very heterogeneous across the communes. It varies from a minimum of 5.1% (95% CI 3.6-6.5) in the commune of Bobo-Dioulasso to a maximum of 41.4% (95% CI 33.5-49.4) in the commune of Djigoué. Of the 341 communes, 208 (61%) had prevalences above the national average of 20.3% (95% CI 18.8-21.2). CONTRIBUTIONS: This analysis provided commune-level estimates of the prevalence of asymptomatic carriage of plasmodium in Burkina Faso. The results of this analysis should help to improve planning of malaria control at the communal level in Burkina Faso.

Implementation and performance evaluation of an integrated specimen referral system in Burkina Faso using the national courier services (2020-2022).

Introduction: In 2017, the Ministry of Health and Public Hygiene (MoH) of Burkina Faso designed and piloted a specimen transport system using the national courier services (La Poste BF) in 4 districts. Based on satisfactory performance indicators, the MoH set a vision aimed at scaling up this system to strengthen disease detection and surveillance of epidemic prone diseases across the country. This work describes the implementation process, performances, and lessons learned. Methodology: This work describes the implementation process, performances, and lessons learned. Under the leadership of the Directorate of Population Health Protection within the MoH, a stepwise approach was used to bring together multiple partners across sectors to develop the first needed documents including a guide, an implementation plan, Standard Operating Procedures, and data collection tools. Then, the execution phase included equipment purchase, trainings, and consensus on a financing mechanism. Key indicators were defined to allow performance monitoring. Result: The integrated biological specimen referral system (SITEB) was officially launched in January 2020 to transport human biological specimens of priority diseases including COVID-19 from district level to reference laboratories nationwide. As of December 31, 2022, La Poste BF transported 168,856 packages containing 206,314 specimens from all 13 regions. 99.66% of packages were delivered in <24 h as required, and 99.68% of specimens were in good condition at reception. COVID-19 specimens represented respectively 18% and 63% of samples transported in 2020 and 2021. Discussion: The political will combined with the experience gained during the pilot phase and the commitment and support from all stakeholders laid to the foundation of the effective implementation of this system. Collaboration between two government entities (MoH and Minister of Transport, Urban Mobility, and Road Safety) to benefit public health has led to reasonable pricing for sustainability. Although all documents integrate the "One Health" approach, the system ensures the transport of only human samples for now. Despite security constraints, Burkina Faso has successfully set up a system using the national postal service to ensure the routine transport of specimens for all diseases under laboratory surveillance including laboratory tests for HIV and TB from the district level to reference laboratories nationwide. This system has also proved to be useful and efficient in managing public health emergency.

[Prognostic factors for neonatal mortality at the Souro Sanou University Hospital in Bobo-Dioulasso, Burkina Faso: a cross-sectional study]. / Facteurs pronostiques de la mortalité néonatale au CHU Sourô Sanou de Bobo-Dioulasso, Burkina Faso: une étude transversale.

Introduction: to help reduce neonatal mortality in Burkina Faso, we identified the prognostic factors for neonatal mortality at the Sourô Sanou University Hospital. Methods: we conducted a cross-sectional and analytical study in the neonatal department from July 25, 2019 to June 25, 2020. Patients' medical records, consultation and hospital records were reviewed. Prognostic factors for neonatal mortality were identified using a Cox model. Results: data from 1128 newborn babies were analysed. Neonatal mortality was 29.8%. Most of these deaths (89%) occurred in the early neonatal period. The mean weight of newborns at the admission was 2,285.8 ± 878.7 and 43.6%. They were at a healthy weight. Four out of five newborns had been hospitalized for infection or prematurity. The place of delivery (HR weight <1000g = 5.45[3.81 -7.79]) and the principal diagnosis (HR asphyxiation= 1.64[1.30-2.08]) were prognostic factors for neonatal mortality. Conclusion: improving technical facilities for the etiological investigation of infections and an efficient management of low-weight newborns suffering from respiratory distress would considerably reduce in-hospital neonatal mortality in Bobo-Dioulasso.

Molecular characterization of Methicillin-resistant Staphylococcus aureus isolated in ready-to-eat food sold in supermarkets in Bobo-Dioulasso: case of charcuterie products.

BACKGROUND: Staphylococcus aureus (S. aureus) is one of the most widespread bacterial pathogens in animals and humans, and its role as an important causative agent of food poisoning is well-documented. The aim of this study was to highlight and characterize the resistance patterns of methicillin-resistant S. aureus (MRSA) in charcuterie products sold in selected supermarkets (SM) in Bobo-Dioulasso, Burkina Faso. METHODS: In this study, 72 samples including ham (n = 19), merguez (n = 22), sausage (n = 15) and minced meat (n = 16) were collected from 3 supermarkets. Standard microbiology methods were utilised to characterise S. aureus isolates. Phenotypic resistance patterns were investigated using the disk diffusion method on Mueller-Hinton agar. Genotypic testing using polymerase chain reaction (PCR) was performed on the isolates to detect the 16S-23S gene. Using specific primers, the following genes PVL, TSST-1, mecA, gyrA, gyrB, qnrA, intI1 and aac(6')-Ib-cr were identified from purified DNA by PCR. RESULTS: Among the 72 ready-to-eat food samples, S. aureus was present in 51, (70.83%). The yield was highest in both the ham and merguez food products, 15/51 (29.41%) each, followed by minced meat 12/51 (23.53%) and sausage 9/51 (17.65%). A total of 35 isolates (68.63%) were confirmed as S. aureus after molecular characterization using 16-23 S primers with 05 (14.29%) strains identified as MRSA. All of the MRSA and majority of the methicillin-sensitive S.aureus (MSSA) isolates were resistant to penicillin G, ampicillin, tetracycline and erythromycin, whereas one isolate from minced meat was found in SM3-harbouring PVL, TSST-1, mecA, gyrA, gyrB and Int1 genes. CONCLUSIONS: Our study revealed a high prevalence of S. aureus in chacuterie products in Bobo-Dioulasso with antimicrobial profiles that show resistance to most antibiotics. These findings should inform and augment efforts to raise awareness among local supermarket owners on adequate food manufacturing practices as well as promoting food safety and hygiene.

Barriers to the quality delivery of seasonal malaria chemoprevention in Chad and Burkina Faso: a qualitative exploration of caregivers and community distributors' perspectives.

BACKGROUND: Recommended since 2012 by the World Health Organization (WHO), seasonal malaria chemoprevention (SMC) is a community-based intervention to prevent malaria in children in African regions where malaria transmission follows a seasonal pattern. Following the publication of consolidated WHO guidelines for malaria, SMC is expected to reach more children in new geographies in future years. Though SMC has been shown to reduce malaria-related morbidity and mortality, there is potential for quality improvement of the intervention implementation. Assisted by ten quality standards from a framework developed by Malaria Consortium, this paper aims to better understand the quality of SMC implementation and identify potential barriers to quality delivery of SMC. METHODS: A qualitative thematic analysis on data collected after the annual SMC rounds implemented in Burkina Faso and Chad in 2019 was conducted. Sixteen focus group discussions conducted with caregivers and community distributors were analysed. Three selected quality standards for SMC delivery; planning and enumeration; community engagement; and administration of SMC medicines provided overarching quality themes under which subthemes were identified. RESULTS: Eight subthemes relating to the three quality standards were identified. Although SMC was well accepted by communities in both settings, common barriers to the quality delivery of SMC were identified including difficulty ensuring adherence to the SMC administration protocol; difficulties reaching mobile populations; concerns around adverse drug reactions; rumours, and concerns about SMC safety; and community distributors' working conditions. Context-specific barriers included: the suboptimal timeliness of the SMC round in Burkina Faso, and the lack of involvement of female caregivers in mobilization activities in Chad. CONCLUSION: In the context of increased adoption of SMC, this paper provides relevant insights and recommendations for the improved implementation of SMC programmes. These include the integration of strategies addressing communities' concerns around adverse drug reactions, gender-specific mobilization strategies, and attention to community distributors' working conditions. It also highlights the importance and utility of further, robust research on the quality of SMC delivery.

RéSUMé EN FRANçAIS: BACKGROUND: Recommandée depuis 2012 par l'Organisation mondiale de la santé (OMS), la chimioprévention du paludisme saisonnier (CPS) est une intervention communautaire visant à prévenir le paludisme chez les enfants dans les régions d'Afrique où la transmission du paludisme suit un schéma saisonnier. Suite à la publication des lignes directrices consolidées de l'OMS sur le paludisme, la CPS devrait toucher davantage d'enfants dans de nouvelles zones géographiques dans les années à venir. Bien qu'il ait été démontré que la CPS réduisait la morbidité et la mortalité liées au paludisme, il y a du potentiel pour améliorer la qualité de l'implémentation l'intervention. En s'appuyant sur un cadre de normes de qualité de la CPS développé par le Malaria Consortium, cette publication vise à mieux comprendre la qualité de la mise en œuvre de la CPS et à identifier les obstacles potentiels à la qualité de la mise en œuvre de la CPS. METHODS: Une étude qualitative basée sur l'analyse secondaire des données collectées après les tournées annuelles du SMC mises en œuvre au Burkina Faso et au Tchad en 2019 a été menée. Une analyse thématique de 16 discussions de groupe menées avec des parents/tuteurs et des distributeurs communautaires a été faite. Trois des éléments clés du cadre des normes de qualité pour le déploiement de la CPS ont fourni les thèmes de qualité principaux sous lesquels les sous-thèmes identifiés ont été placés. RéSULTATS: Huit sous-thèmes relatifs aux normes de qualité ; la planification, la sensibilisation et l'engagement des communautés ainsi que l'administration des médicaments de la CPS ont été identifiés. Bien que la CPS ait été bien acceptée par les communautés dans les deux contextes, des obstacles communs à la qualité du déploiement de la CPS ont été identifiés, notamment : la difficulté d'assurer le respect du protocole d'administration de la CPS; atteindre les populations mobiles ; les préoccupations concernant les effets indésirables des médicaments ; les rumeurs et les préoccupations concernant le SMC; et les conditions de travail des distributeurs communautaires. D'autres barrières spécifiques au contexte de déploiement ont été identifiées, telles que le choix sous-optimal de la période de déploiement au Burkina Faso ou le manque d'implication des mères/tutrices dans les activités de mobilisation au Tchad. CONCLUSION: Dans le contexte de l'adoption croissante de la CPS, cette publication fournit des informations et des recommandations pertinentes pour l'amélioration de la mise en œuvre des programmes de CMS, telles que l'intégration de stratégies répondant aux préoccupations des communautés concernant les effets indésirables des médicaments, les stratégies de mobilisation spécifiques au genre, et/ou l'attention portée aux conditions de travail des distributeurs communautaires. Cette publication souligne également l'importance et l'utilité des recherches en cours sur la qualité du déploiement de la CPS.

RESUMO EM PORTUGUêS: INTRODUçãO: Recomendada desde 2012 pela Organização Mundial de Saúde (OMS), a quimioprevenção sazonal do paludismo (SMC) é uma intervenção de base comunitária para prevenir o paludismo em crianças em zonas da África onde a transmissão do paludismo segue um padrão sazonal. Após a publicação das diretrizes consolidadas da OMS sobre o paludismo, espera-se que a SMC chegue a mais crianças em novas zonas geográficas nos próximos anos. Embora se tenha demonstrado que a SMC reduz a morbilidade e a mortalidade causadas pelo paludismo, há potencial para melhorar a qualidade da implementação da intervenção. Com ajuda dum quadro de padrões de qualidade para a SMC desenvolvido pelo Malaria Consortium, a presente publicação visa compreender melhor a qualidade da implementação da SMC e identificar potenciais barreiras à qualidade da implementação da SMC. MéTODOS: Foi realizado um estudo qualitativo baseado na análise secundária dos dados recolhidos após as rondas anuais da SMC implementadas no Burkina Faso e no Chade em 2019. Foi efectuado uma análise temática de 16 discussões de grupos focais realizadas com cuidadores e distribuidores comunitários. Tres padrões do quadro de normas de qualidade para a implementação da SMC forneceu os principais temas de qualidade sob os quais os subtemas identificados foram colocados. RESULTADOS: Foram identificados oito sub-temas relacionados com padrões de qualidade; planeamento; sensibilização e envolvimento da comunidade; e administração de drogas da SMC. Embora a SMC tenha sido bem aceita pelas comunidades em ambos os contextos, foram identificadas barreiras comuns à implementação duma SMC de qualidade, incluindo: a dificuldade de assegurar o cumprimento do protocolo de administração da SMC; atingir populações móveis; preocupações com reacções adversas aos medicamentos; rumores e preocupações com a SMC; e as condições de trabalho dos distribuidores comunitários. Foram identificados outros obstáculos específicos ao contexto de implantação, tais como a escolha subaproveitada do período de implantação no Burkina Faso ou a falta de envolvimento das cuidadoras femininas nas actividades de mobilização no Chade. CONCLUSãO: No contexto do aumento da adopção da SMC, esta publicação fornece informações e recomendações relevantes para melhorar a implementação de programas de SMC, tais como estratégias integradoras que abordam as preocupações da comunidade sobre reacções adversas aos medicamentos, estratégias de mobilização específicas de género, e/ou atenção às condições de trabalho dos distribuidores comunitários. Salienta igualmente a importância e a utilidade das investigaçãos em curso sobre a qualidade da implementação da SMC.

How migration shapes modern contraceptive use among urban young women: Evidence from six African countries.

BACKGROUND: Internal migration is an important part of the transition to adulthood for many young people in sub-Saharan Africa. This study examines how migration, in relation to marriage and parenthood, impacts modern contraceptive use and health facility visits amongst young urban women. METHODS: We draw on Performance Monitoring for Action (PMA) surveys conducted in Burkina Faso, Côte d'Ivoire, Democratic Republic of Congo, Kenya, Nigeria, and Uganda (2019-2022). Our analysis is unique in being able to adjust for whether women wanted to get pregnant soon. Our sample includes women ages 15-24 years currently residing in urban areas (n = 6,225). We conducted logistic regression models clustered by village level identifier to explore the sequence of life events and the timing of migration in relation to current modern contraceptive use and recent health facility visit, a proxy for engagement with formal health services. RESULTS: The timing of migration matters more than the sequence of these life events. Young urban women who experienced both migration and a birth, regardless of the order, had increased contraceptive use and recent health facility visit, compared to women who had only experienced one event or neither. Young women who migrated in the past year had 24% lower odds of using a modern method (Odds Ratio = 0.76; 95% confidence interval 0.63, 0.91), adjusting for demographic factors and adjusting for fertility preference (Wanting to get pregnant soon). Having had a birth was highly significant for health facility visit and among women who had had a birth, those who migrated in the last year had lower odds of a recent visit (OR = 0.68, 95% CI 0.41, 0.89). Results suggest an initially disruptive effect of migration. DISCUSSION: Our results suggest young women who recently migrated to urban areas may need additional support in accessing contraception and formal health services for themselves or their children.

Peasant perception of beekeeping constraints and practices in large honey production areas in Burkina Faso.

BACKGROUND: In recent decades, agricultural landscapes have been profoundly modified due to the intensification of agriculture, therefore leading to significant disturbances in all components of biodiversity. A survey on the knowledge of beekeeping realities and the use of phytosanitary products in areas of high honey production in Burkina Faso was carried out. Beekeeping realities design the state of beekeeping activities in the study localities. METHODS: The objective of this survey was to characterize Beekeeping operations and to assess the level of knowledge of beekeepers on the effects of the use of phytosanitary products through different beekeeping and agricultural practices. In this sense, 113 farmer beekeepers from the Boucle du Mouhoun, Hauts-Bassins and Nord regions in Burkina Faso were surveyed about their different beekeeping practices. RESULTS: The results obtained indicated that beekeeping is a secondary activity (96.47%) and is mainly practiced by men (90.27%). The respondents have mostly an average of 22 traditional hives. The majority of beekeepers have not received training (84.07%) on the hazards of plant protection products on their beekeeping farms. However, a large amount of beekeepers (70.73%) acknowledged that the use of plant protection products could be harmful to their activity. Hives are usually installed in or near the fields. The plant protection products used for crop protection are herbicides (27%), insecticides (23%), fungicides (8%), but especially mixed (42%). CONCLUSION: The results show that beekeeping in Burkina Faso remains traditional and is practiced for sociocultural reasons. The use of pesticides close to beekeeping could play a role in bee colony collapse taking place in these regions. Training beekeepers on the dangers of the chemicals they use in fields near hives is therefore essential.

Genetic diversity of enteric viruses responsible of gastroenteritis in urban and rural Burkina Faso.

BACKGROUND: Viral gastrointestinal infections remain a major public health concern in developing countries. In Burkina Faso, there are very limited updated data on the circulating viruses and their genetic diversity. OBJECTIVES: This study investigates the detection rates and characteristics of rotavirus A (RVA), norovirus (NoV), sapovirus (SaV) and human astrovirus (HAstV) in patients of all ages with acute gastrointestinal infection in urban and rural areas. STUDY DESIGN & METHODS: From 2018 to 2021, stool samples from 1,295 patients with acute gastroenteritis were collected and screened for RVA, NoV, SaV and HAstV. Genotyping and phylogenetic analyses were performed on a subset of samples. RESULTS: At least one virus was detected in 34.1% of samples. NoV and SaV were predominant with detection rates of respectively 10.5 and 8.8%. We identified rare genotypes of NoV GII, RVA and HAstV, recombinant HAstV strains and a potential zoonotic RVA transmission event. CONCLUSIONS: We give an up-to-date epidemiological picture of enteric viruses in Burkina Faso, showing a decrease in prevalence but a high diversity of circulating strains. However, viral gastroenteritis remains a public health burden, particularly in pediatric settings. Our data advocate for the implementation of routine viral surveillance and updated management algorithms for diarrheal disease.

Extent and patterns of drug use in prison in Burkina Faso: findings from a cross-sectional study in central prison of Ouagadougou.

PURPOSE: Drug use in prisons remains a public health concern because it is often the place of drug initiation. The purpose of this study was to analyze the drug use in prison in Burkina Faso. DESIGN/METHODOLOGY/APPROACH: We conducted cross-sectional study in the prison of Ouagadougou. The adult prisoners (male and female) incarcerated for more than one month at the largest prison of Burkina Faso were included in the study. Participants were selected using a systematic random sampling. Data were collected from October 28 to November 26, 2018. The face-to-face interviews were conducted in the prison grounds. Logistic multivariate regression was used to identify factors associated with in prison drug use. All analysis was done using Stata. FINDINGS: A total of 379 prisoners were included in this study. Approximately one-third inmates (32.71%; n = 124) experienced illicit drug in lifetime. Nearly one-third (28.76%; n = 109) of the prisoners were drug users before incarceration and 11.87% (n = 45) used drug inside the prison, of which 33.33% (n = 15) initiated drug use in the prison. Cannabis was the first drug used by the prisoners (71.11%) followed by tramadol (62.22%), diazepam (13.33%) and cocaine (2.22%). Four prisoners (3.63%) had reported Heroin use before incarceration. Cannabis was mainly smoked. Tramadol, diazepam and amphetamines were swallowed or mixed with food. Cocaine is smoked and snorted. Case of injection of cocaine and heroin was reported before incarceration. Main factors independently associated with drug use in prison is drug use before prison and young age of inmates. Indeed, inmates who had reported drug use before prison had 4.01 time {adjusted odd ratio (AOR: 4.01 [95% CI: 1.91-8.41])} higher odds to use drug in prison. RESEARCH LIMITATIONS/IMPLICATIONS: To conduct the interviews in the prison grounds could be a limitation due to social desirability bias. Indeed, the prisoners may understate drug use in prison for the fear of likely additional sentence. Availability of biological tests for drug markers might help addressed this bias. Nevertheless, the findings of this study should help to plan effective drug use prevention and care programs for prisoners. PRACTICAL IMPLICATIONS: The actions must include the implementation of a medical and psychological care in continuum of healthcare system in Burkina Faso. This system should include screening at entry and adequate health and psychological care in prison for drug users for an effective control of drugs use in prison. SOCIAL IMPLICATIONS: Most of these drug users in prison have a low level of education and are unemployed. Education activities and training on occupational activities to prepare drug users for a successful social reintegration less dependent on drugs is essential. This study can be a basis to explore more possibilities and find out what is available to help those with substance use disorder, manage these cases in prison and prevent relapse on release. ORIGINALITY/VALUE: To the best of the authors' knowledge, this study is the first study on drug use in prison in Burkina Faso. It indicates that the repressive strategy against drug use seems ineffective because former users continue their consumption inside and also new users are initiated to use drugs in prison.