ntroduction : La rage, zoonose mortelle mais évitable, reste un défi majeur de santé publique au Burkina Faso. Objectif : Analyser les tendances épidémiologiques (2013-2023) et identifier les lacunes des systèmes de surveillance et de contrôle. Méthodes : Une étude à méthodes mixtes combinant une analyse rétrospective des données de surveillance (2013– 2023) et une enquête qualitative transversale par entretiens auprès de 20 acteurs clés (soignants, vétérinaires, responsables) a été conduite. Résultats : L'analyse révèle 555 cas humains et 2 108 animaux confirmés. Une augmentation annuelle significative des cas humains est observée (coefficient de Poisson=0,08 ; p<0,01), avec un pic d'incidence à 0,53 pour 100 000 habitants en 2022. Cette tendance contraste avec l'absence d'évolution significative des cas animaux, suggérant une sous- déclaration massive. Les obstacles qualitatif...

Porcelain is a ceramic product formulate from a typical triaxial mixture: clay and kaolin; quartz; feldspar. The use of three mineral materials from Burkina Faso in the formulation of porcelains has been studied. The characterization results showed that the clay « NONG » contains kaolinite (62%), illite (18%), quartz (17%) and rutile (1%). The pegmatite « PEG » contains albite (17%), muscovite (44%) and quartz (34%). The sand « SAB » is mainly composed of quartz. Formulation of traditional hard porcelain generally requires 50% kaolin, 25% silica and 25% feldspar. Some samples were shaped by casting into porous molds and sintered at temperatures ranging from 1200 °C to 1300°C. During firing, clay « NONG » has a role in mullite recrystallization and the formation of a vitreous phase. « PEG » contributes to the quantity and behavior of the liquid phase at temperatures above 1050 °C. It cont...

In this work, we prove some properties of the set of solutions for some integrodifferential equations called Kneser's property.

Listeriosis is a foodborne illness that can lead to bacterial meningitis. In this paper, we propose and investigate a model of co-infection involving both listeriosis and bacterial meningitis, originating from ready-to-eat food products. We begin by examining the patterns of each disease individually, as well as the dynamics of their co-infection. From our global co-infection model, we derive separate models for bacterial meningitis and listeriosis. Each model is analyzed in terms of the existence of equilibrium points, threshold dynamics parameters, stability results, sensitivity analysis, and the presence of backward and forward bifurcations. Finally, we present numerical simulation results to support our theoretical findings.

Rice stem borers constitute a serious threat to rice production in Burkina Faso. Trials were conducted in 2022 and 2023 at Bama and Karfiguéla, western Burkina Faso. The study aimed at assessing the biodiversity associated with rice Lepidoptera stem borers when using biological insecticides for the control of these insect pests. Methods: A randomized completely block design with six treatments and four replications was used. Treatments included two botanical insecticides (Azadirachta indica, Jatropha curcas), two entomopathogens (Bacillus thuringiensis, Trichoderma sp.) followed by an untreated control and, a positive control (deltamethrin). Six insecticide applications per treatment were carried out at a frequency of 14 days each, starting on the 15th day after transplanting (DAT). Oil extracts from A. indica, J. curcas, and B. thuringiensis, as well as deltamethrin, were applied...

The pollution model based on the Kazhikhov-Smagulov equations, a set of equations in fluid mechanics and environmental modeling, is thoroughly investigated numerically in this paper. We investigate the intricate behavior of pollution in a single spatial dimension using a Godunov-type method, which is renowned for its ability to capture discontinuities and shocks effectively. Our 1D simulations illustrate frequently overlooked facets of mixture phenomena, highlighting the model’s complex and varied dynamics. Numerical experiments illustrate the relevance of the proposed numerical procedure.

Extensive livestock farming plays an important socioeconomic role in the Sahel region but remains vulnerable due to the scarcity of forage resources. This study investigated how connectivity between a managed pastoral zone and a protected area contributes to enhancing forage resource availability and rangeland quality. Methods: A stratified sampling design was adopted to assess floristic diversity, forage productivity, and rangeland quality in two land-use types, notably a protected area and a pastoral zone that includes young and old fallows, in Burkina Faso. To assess species forage values, interviews and field observations were used. Floristic diversity was similar between the pastoral zone and the protected area (p > 0.05) due to the homogenization of herbaceous vegetation structure and composition in the two land-use types. The two connected landuse types were dominated by the Poace...

Zanthoxylum zanthoxyloides is a medicinal plant employed in the production of phytomedicines in Burkina Faso, including FACA®, which is used for the treatment of sickle cell disease. A chemometric spectral-prediction approach was applied to classify Z. zanthoxyloides organ powders according to organ type, including leaves, stem bark, and roots. The characteristic FTIR spectral profile of Z. zanthoxyloides powders revealed spectral bands of interest between 800 and 1750 cm−1, enabling discrimination among the analyzed powders. A Partial Least Squares–Discriminant Analysis (PLS-DA) model was constructed using spectral data from 75 powder samples representing three plant organs, collected from three sites in Burkina Faso. The PLS-DA model, validated through ANOVA and permutation tests, demonstrated excellent performance, achieving 93.33% overall classification accuracy and an ROC-AUC exc...

Introduction : La résistance aux antimicrobiens constitue une menace croissante pour la santé mondiale, surtout dans les pays à ressources limitées. L’objectif était de décrire le profil bactériologique et les résistances du Département de médecine et spécialités médicales du CHUSS. Méthodes : Il s’est agi d’une étude descriptive rétrospective menée de janvier à décembre 2024 chez des patients hospitalisés présentant des cultures bactériologiques positives, analysées au Laboratoire de Bactériologie-Virologie du CHUSS. L’identification bactérienne a suivi les procédures standard, et la sensibilité aux antibiotiques a été évaluée par la méthode de diffusion en disques selon les recommandations de l’EUCAST 2015 conformément au guide national de surveillance des résistances aux antimicrobiens en vigueur au Burkina Faso durant la période de collecte. Résultats : Sur 439 examens cyt...

Introduction : La radiothérapie joue un rôle crucial dans le contrôle des saignements potentiellement mortels associés au cancer du col de l’utérus avancé. L’objectif est de calculer et décrire notre expérience dans la prise en charge des hémorragies sévères par radiothérapie hémostatique dans le cancer du col et d’évaluer son efficacité. Méthodologie : Une étude rétrospective et descriptive a été menée sur des patientes ayant reçu un cancer du col traitées par radiothérapie hémostatique entre mars 2021 et janvier 2023 au centre de radiothérapie de l’hôpital Dalal Jaamm. L’efficacité du traitement a été évaluée en utilisant le score hémorragique de l’OMS (IC à 95 % : [78,1–99,9], p<0,001) des patientes, avec avant et après la radiothérapie. Une analyse statistique a été réalisée en calculant les fréquences absolues pour les variables qualitatives et en comparant les fréquences à l’aide...