Introduction : Les traumatismes bucco-maxillo-faciaux sont souvent à l’origine de la survenue de fractures dentaires, maxillaires et/ou mandibulaires et peuvent parfois engager le pronostic vital du sujet affecté. Objectifs : Déterminer les aspects épidémiologiques des fractures traumatiques dento-maxillo-mandibulaires au CHU Sylvanus Olympio (CHU-SO) de Lomé. Matériels et méthode : Il s’agit d’une étude rétrospective descriptive à travers un échantillon de 102 patients pris en charge au CHU-SO de Lomé et dont les dossiers compilés dans la période du 1er janvier 2007 au 31 décembre 2011 mentionnaient le diagnostic de fracture traumatique maxillomandibulaires et/ou dentaires. Résultats : Avec un échantillon de 102 patients représentant une prévalence hospitalière de 13,5 % et une incidence de 20,4 cas par an, ces traumatismes survenaient avec des f...

Introduction: Hepatitis A virus (HAV) and hepatitis B virus (HBV) infections represent significant public health challenges in sub-Saharan Africa, including Burkina Faso. HAV is the most symptomatic viral hepatitis, while HBV is the most endemic and can lead to severe complications such as cirrhosis and hepatocellular carcinoma (HCC). HAV is an RNA virus belonging to the Picornaviridae family, whereas HBV is a DNA virus of the Hepadnaviridae family. Despite the health burden of HAV, limited data are available on its prevalence in Burkina Faso. Although more information exists on HBV, the introduction of the HBV vaccine into the Expanded Program on Immunization (EPI) and ongoing awareness campaigns necessitate regular updates on its epidemiological status. This study aimed to conduct serological and molecular PCR-based diagnosis of HAV and HBV among blood donors at the Region...

Although national and international institutions, such as the World Health Organization (WHO) and UNAIDS, are making significant efforts to eradicate HIV by 2030, it remains a major threat to global public health. Despite its low prevalence, HIV continues to claim lives and remains a major public health issue, especially in developing countries. Thanks to the accessibility of antiretroviral drugs, the prevalence of this scourge has been gradually declining worldwide in recent years. Thus, the present article investigates antiretroviral therapy's effectiveness in controlling viral transmission through a fractional-order extension of a deterministic model. We study the boundedness of the model's solution by applying the Laplace transform to solve the fractional Gronwall inequality. To ensure the existence and uniqueness of the model's solution, we rely on the Pica...

Land is a vital resource and productive asset in agriculture. In Burkina Faso, several ways access to land. This study analyzes the land status in the agricultural production context in Burknia Faso. Using surveys and area measurement techniques, primary data collection carried out among 250 households in two villages. The measurement of the selected households’ farmland was performed using Global Position System. The results showed that inheritance, gifts and loans were the major forms of access to land for agriculture. In Toessin village, 32% of households cultivates their own and borrowed lands separately. In contrast, in Bonogo village, 64% and 21% of households cultivate respectively on their own lands and borrowed land. Furthermore, in Toessin, 41% of households have cultivated plots of less than 2 hectares, 22% have fields whose size is between 2 and 4...

The Razoutenga forest in Burkina Faso serves as a vital ecological and socio-economic asset for the surrounding rural communities. It is located in the Sahel region, specifically in the sub-Saharan sector of Burkina Faso. It falls within the municipality of Zitenga, which is in the Oubritenga region. This study investi-gates the extent to which forest resources contribute to the resilience of house-holds living in proximity to the forest. This is why a survey based on semi-structured interviews conducted with 56 heads of household, representing more than 62% of the households in the village, was carried out, employing a mixed quantitative and qualitative approach to ensure the robustness of the data and its extrapolation to the entire population. The results highlight a local governance framework based on customary norms, in which access to forest resources is regulated by t...

The Sudanian savanna is a key vegetation biome in West Africa providing food and vital ecosystem services. Recently, it has been reported alarming ve getation loss in this biome, calling for more investigation, relevant to tackle land degradation and ensure food security. However, vegetation dynamics in this area remains a matter of debate, and one of the main challenges is to document consistently the underlying driving factors. This study aimed at assessing vegetation trends and driving factors from 2000 to 2022. NDVI trend, detected using the Mann-Kendall’s monotonic trend test, was used as proxy to express vegetation dynamics. In addition to the non-parametric Spearman correlation analysis, variables importance scores, derived from Random Forest (RF) classifications, were used to determine key driving fac tors among climatic, topographic, edaphic, acc...