RESUMEN
Edwarsiella tarda is a zoonotic bacterium that can be isolated from humans, animals and the environment. Although E. tarda is primarily considered a fish pathogen, it is the only species of its genus considered to be pathogenic for humans as well. A survey of zoonotic intestinal bacteria in fresh feces from South American sea lions (SASL) Otaria flavescens, reported E. tarda as the most frequently isolated species. In this study, we used HEp-2 cells to establish in vitro the adherence and invasive ability of 17 E. tarda strains isolated from SASL fecal material. All the strains were able to adhere and invade HEp-2 cells with adhesion and invasion percentages ranging from 56 to 100% and 21 to 74%, respectively. Despite the expression of these pathogenic factors, further investigation is needed to determine whether this bacterium could play a role as primary pathogen for this and other species of pinnipeds.
Asunto(s)
Animales , Humanos , Adhesión Bacteriana , Endocitosis , Edwardsiella tarda/fisiología , Infecciones por Enterobacteriaceae/veterinaria , Hepatocitos/microbiología , Leones Marinos/microbiología , Edwardsiella tarda/aislamiento & purificación , Infecciones por Enterobacteriaceae/microbiología , América del SurRESUMEN
Edwardsiella tarda es un bacilo Gram negativo, de la familia Enterobacteriaceae; comúnmente hallado como agente infeccioso de peces y otros animales principalmente relacionados con medios acuáticos. Es una rara causa de enfermedad en humanos, asociándose a diferentes enfermedades infecciosas, usualmente en pacientes que presentan comorbilidades de base. Se presenta un caso de sepsis, asociado a artritis séptica, meningitis e infección urinaria por E. tarda, en un paciente con anemia falciforme; así mismo se realizó una revisión de la literatura.