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.
Subject(s)
Anti-Bacterial Agents/pharmacology , Chickens , Drug Resistance, Bacterial , Haemophilus Infections/veterinary , Haemophilus paragallinarum/drug effects , Poultry Diseases/microbiology , Animals , Haemophilus Infections/microbiology , Mexico , Microbial Sensitivity Tests/veterinary , Panama , South AmericaABSTRACT
Se relata el hallazgo de una cepa de bacilos gram-negativos, tipificada como Acinetobacter calcoaceticus (Biotipo iwoffi).en una infeccion post-operatoria de un paciente internado en el servicio de cirugia Toracica del Hosp. Gustavo Saint-Bois. Se destacan aspectos clinicos y bacteriologicos relacionados con este patogeno, que siendo frecuente en infecciones nosocomiales, se aisla en raras oportunidades y con tipificacion solo presuntiva
