Resumen-En este estudio se propone una nueva metodología de enseñanza-aprendizaje activa, denominada Aprendizaje Basado en Productos; donde los estudiantes en base a la elaboración de un producto mínimo viable durante un ciclo académico dan solución a una problemática o situación real-socioambiental de su localidad o globalmente. La propuesta se experimentó en 22 estudiantes del cuarto

The prevalence and antimicrobial susceptibility of Campylobacter jejuni and C. coli strains in healthy, well-nourished children of middle socioeconomic level from Southern Ecuador were determined. Among the 127 children studied, 17 (13.4%) harbored Campylobacter sp. corresponding to C. jejuni (7.1%) and C. coli (6.3%) with a higher concentration of C. jejuni among boys (8.6%) and C. coli (8.8%) among girls. C. jejuni showed high resistance to nalidixic acid and ciprofloxacin (77.8%), but susceptibility to all other antimicrobials tested. C. coli strains showed resistance to more antibiotics than C. jejuni strains including resistance to nalidixic acid (75%), ciprofloxacin (75%), erythromycin (12.5%) and ampicillin (28.6), but susceptible to gentamicin and amoxicillin/clavulanic acid.

No abstract

Occurrence and antimicrobial resistance profiles of Campylobacter jejuni and C. coli strains isolated from fecal samples of dogs, pigs, cows and hens in southern Ecuador were studied. Of the 250 samples studied, 84 (33.6%) were Campylobacter positive, with C. jejuni being more frequent (78.6%) than C. coli (21.4%), with the exception of porcine samples, from which C. coli was the only species isolated. Multidrug resistance was reported in 10 Campylobacter strains (11.9%), four C. jejuni and six C. coli, and was always associated with nalidixic acid and ciprofloxacin resistance. All of the amoxicillin-resistant strains were susceptible to amoxicillin-clavulanic acid and were therefore beta-lactamase producers. However, one strain of C. jejuni remained resistant with additional resistance to gentamycin. This is an uncommon resistance pattern in Campylobacter and could reflect different resistance mechanisms.

ABSTRACT. The prevalence and antimicrobial behaviour of Campylobacter jejuni/coli isolated from backyard chickens from Southern Ecuador were determined. This study revealed that Campylobacter sp. frequency was 41.7% with high resistance to tetracycline (94.0%) and ciprofloxacin (88%). C. jejuni was the most frequently isolated species (32.5%), followed by C. coli (9.2%) being poultry colonization by Campylobacter not region dependent. This is the first study on Campylobacter antimicrobial resistance in backyard chickens in Southern Ecuador.