Virulence Factors of Aeromonas spp

• Main Authors: Gresleida Rincòn V., Alisbeth Fuenmayor B., Maribel Castellano G., Rosana Barrios U., Marìa Colina Ch., Gènesis Nuñez F.
• Format: Article in Journal/Newspaper
• Language: English; Spanish
• Published: Universidad del Zulia,Facultad de Medicina,Departamento de Enfermedades Infecciosas y Tropicales 2016
• Subjects: spp; factores de virulencia; patogenicidad; vegetales tipo hoja; gastroenteritis; Arctic medicine. Tropical medicine; RC955-962; Public aspects of medicine; RA1-1270; Arctic
• Online Access: https://doaj.org/article/499f461ae10c49e687dd09037ee54f30

Some species of Aeromonas have emerged as important pathogens associated with the development of gastrointestinal and extra-intestinal infections. The objective of this study was to evaluate the potential virulence of Aeromonas strains from vegetables. Virulence factors were analyzed: DNase, lecitinasa, caseinase, gelatinase, hemolysines and hemaglutinies, in 59 strains of A. hydrophila and 61 of A. caviae, isolated from coriander, parsley and lettuce obtained in establishments in Maracaibo city. The results were analyzed through statistics χ2. The virulence factors studied were expressed for more of the 80% of the strains. Four of the 6 factors were expressed in greater proportion in Aeromonas hydrophila strains, although the difference between the species only significant in for caseinase expression (94.9% vs 72.1%, p <0.05). All strains exhibited DNase activity. The lecitinasa expression result slightly higher in A. caviae strains (p> 0.05). A significant difference was evident in the number of virulence factors expressed by the two species, being higher for A. hydrophila (p <0.05). The expression of a large number of virulence factors the analyzed Aeromonas strains, allow to attribute a potential of pathogenicity to the strain of human infections