Introduction: Salmonella is a major foodborne pathogen widely distributed in the environment. Surface water, soil, and sediments may confer a protective effect on Salmonella against non-host conditions. Methodology: This study focused on determining the prevalence of Salmonella spp. in river sediments from Sinaloa central region by the Most Probable Number (MPN) technique and determining the antimicrobial resistance profile by Kirby-Bauer assay. Results: Results showed the prevalence of Salmonella from 37.5 to 62.5% of the samples, oscillating from 0.322 to 20 MPN/4g, with August being the month with the highest levels. In silico geno-serotyping reveals the presence of Salmonella serotypes Typhi, Javiana, Ohio, Montevideo, Oranienburg, Pomona, Agona, Livingstone, Weltevreden, Anatum, and Minnesota. The most prevalent serotypes in river sediments were Pomona, Montevideo, and Oranienburg. Almost all isolates showed resistance to erythromycin, rifampin, and penicillin. Conclusions: This study reveals the prevalence and distribution of Salmonella enterica in river sediments, which may represent a potential niche for establishment and survival in the environment and become a potential contamination source.

Salmonella enterica is known for its disease-causing serotypes, including Montevideo and Pomona. These serotypes have been found in various environments, including river water, sediments, food, and animals. However, the global spread of these serotypes has increased, leading to many reported infections and outbreaks. The goal of this study was the genomic analysis of 48 strains of S. Montevideo and S. Pomona isolated from different sources, including clinical. Results showed that environmental strains carried more antibiotic resistance genes than the clinical strains, such as genes for resistance to aminoglycosides, chloramphenicol, and sulfonamides. Additionally, the type 4 secretion system, was only found in environmental strains. .Also many phosphotransferase transport systems were identified and the presence of genes for the alternative pathway Entner-Doudoroff. The origin of isolation may have a significant impact on the ability of Salmonella isolates to adapt and survive in different environments, leading to genomic flexibility and a selection advantage.

El presente estudio analiza la conciencia ambiental de estudiantes de los últimos semestres de Ingeniería Civil desde una perspectiva crítica centrada en el currículo oculto y su articulación con una racionalidad neoliberal. La investigación se desarrolló desde un enfoque cualitativo-interpretativo con aproximación etnográfica en la Facultad de Ingeniería Mochis de la Universidad Autónoma de Sinaloa. Como técnica principal se empleó la entrevista semiestructurada, aplicándose 43 entrevistas a estudiantes de octavo y noveno semestre. El análisis permitió identificar que la preocupación ambiental del estudiantado no está ausente; sin embargo, se configura de manera condicionada por las jerarquías laborales, la rentabilidad, la rapidez de ejecución y la adaptación a las exigencias del mercado. Los testimonios muestran que la sustentabilidad es reconocida como deseable en el plano discursivo, pero ocupa una posición secundaria cuando entra en tensión con criterios técnico-productivos considerados más viables o realistas. Asimismo, se observó que la formación profesional transmite, además de conocimientos explícitos, aprendizajes implícitos sobre qué prioridades deben orientar el ejercicio ingenieril. Se concluye que la baja centralidad práctica de la sustentabilidad no responde únicamente a decisiones individuales, sino a un proceso formativo atravesado por un currículo oculto que normaliza una visión neoliberal del desempeño profesional

Salmonella is a leading cause of foodborne outbreaks worldwide, commonly associated with the consumption of water or food contaminated with feces. This ubiquitous microorganism comprises numerous s...