Aeromonas hydrophila is an opportunistic microorganism. It is widely involved in frog infections. Hoplobatrachus occipitalis is the species of frog most consumed in the different localities of Côte d’Ivoire. This research aimed to study the extracellular virulence factors and antibiotic resistance profiles of A. hydrophila strains isolated from H. occipitalis. The determination of extracellular virulence factors were performed onto 113 strains of A. hydrophila isolated from frogs H. occipitalis using conventional methods. The antimicrobial susceptibility tests were performed by the disk diffusion method using 20 isolates of A. hydrophila. All strains isolated produce nuclease (100%) but the ability to produce haemolysins, lipases, amylases and proteases varied from one isolate to another These microorganisms were the most resistant to Amoxicillin (95%), Ampicillin (90%), Tetracyclin (85%), Ceftriaxone (80%) Chloramphenicol (75%). All strains of A. hydrophila have developed multi-resistance to different antibiotics used. The multiple antibiotic resistance indices ranged from 0.41 to 0.83. These data show the degree of pathogenicity of the strains isolated from frogs. The consumption of this species could constitute a threat to consume them if hygiene measures are not taken into account.

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