Pseudomonas aeruginosa: an emerging nosocomial trouble in veterinary

Pseudomonas aeruginosa: an emerging nosocomial trouble in veterinary

ABSTRACT

Objective. The goal of this study was to evaluate the susceptibility pattern of isolates P. aeruginosa from veterinary clinical centers in Bogotá, D.C., to some commonly used antibiotics in clinical. Materials and methods. Bacteriological standard protocols were used for the isolation and identification of bacterial strains. To evaluate the antimicrobial susceptibility of the isolates, to commonly used antibiotics, was performed the Kirby-Bauer agar-disk diffusion method on Mueller-Hinton agar. Results. A total of 160 samples was taken from clinical specimens and the environment in different veterinary clinics. Out of these samples, 89 (55.6%) were gram-negative strains, of which ten strains of P. aeruginosa were isolated (11.2%). All strains were resistant to Cefazolin, Lincomycin, Cephalothin, Ampicillin, Clindamycin, Sulfamethoxazole-Trimethoprim and Chloramphenicol while some isolates exhibited either resistance or an intermediate response to Amikacin (30%), Gentamicin (30%), Tobramycin (10%), Ciprofloxacin (20%), Ceftazidime (30%), Erythromycin (100%), Tetracycline (100%), Imipenem (10%), Meropenem (90%) and Bacitracin (90%). Conclusions. The results demonstrate that the acquired antimicrobial resistances of P. aeruginosa strains depend on antibiotic protocols applied. As observed in human hospitals, Pseudomonas aeruginosa is acting as one of the multidrug-resistant microorganisms of veterinary clinical relevance.

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