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Antimicrobial Sensitivity of Avibacterium paragallinarum Isolates from Four Latin American Countries.

Authors
  • Luna-Galaz, G A1
  • Morales-Erasto, V2
  • Peñuelas-Rivas, C G1
  • Blackall, P J3
  • Soriano-Vargas, E1
  • 1 A Centro de Investigación y Estudios Avanzados en Salud Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca 50200, México.
  • 2 B Solutions in Immunology and Microbiology SA de CV, Toluca 50200, México.
  • 3 C Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia 4072, Australia. , (Australia)
Type
Published Article
Journal
Avian Diseases
Publisher
BioOne (American Association of Avian Pathologists)
Publication Date
Sep 01, 2016
Volume
60
Issue
3
Pages
673–676
Identifiers
DOI: 10.1637/11398-022616-ResNote.1
PMID: 27610729
Source
Medline
Keywords
License
Unknown

Abstract

The antimicrobial sensitivity of 11 reference strains and 66 Avibacterium paragallinarum isolates from four Latin American countries was investigated. All 11 reference strains were sensitive to amoxicillin-clavulanic acid, ampicillin, fosfomycin, gentamicin, kanamycin, neomycin, penicillin, tetracycline, and trimethoprim-sulfamethoxazole. The 11 reference strains were all resistant to lincomycin. All isolates (100%) from Mexico, Panama, and Peru were sensitive to amoxicillin-clavulanic acid, ampicillin, and fosfomycin. The Ecuadorian isolates showed some level of resistance to all 16 agents tested. The Ecuadorian isolates were significantly more sensitive to erythromycin, lincomycin, and streptomycin, and significantly more resistant to gentamicin, kanamycin, penicillin, and tetracycline, than the Mexican isolates. A total of 57.5% (38/66) of tested isolates were multi-drug resistant (MDR), with 16 MDR patterns detected in 88.4% (23/26) of the antimicrobial-resistant isolates from Ecuador, and 8 MDR patterns detected in 42.8% (15/35) of the antimicrobial-resistant isolates from Mexico. In conclusion, the variation in antimicrobial sensitivity patterns between isolates from Ecuador and Mexico emphasizes the importance of active, ongoing monitoring of A. paragallinarum isolates.

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