Antimicrobial Sensitivity of Avibacterium paragallinarum Isolates from Four Latin American Countries.
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.
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.
G A
GA
Luna-Galaz
B Solutions in Immunology and Microbiology SA de CV, Toluca 50200, México.
V
V
Morales-Erasto
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.
C G
CG
Peñuelas-Rivas
C Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia 4072, Australia.
P J
PJ
Blackall
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.
E
E
Soriano-Vargas
D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D002645:Chickens; D024881:Drug Resistance, Bacterial; D006192:Haemophilus Infections / Q000382:microbiology / Q000662:veterinary*; D044134:Haemophilus paragallinarum / Q000187:drug effects*; D008800:Mexico; D008826:Microbial Sensitivity Tests / Q000662:veterinary; D010176:Panama; D011201:Poultry Diseases / Q000382:microbiology*; D013020:South America
D000900:Anti-Bacterial Agents
Avibacterium paragallinarum; antimicrobial sensitivity; infectious coryza; poultry