Antibiotic Resistance in Staphylococcus aureus and Coagulase Negative Staphylococci Isolated from Goats with Subclinical Mastitis
Articolo
Data di Pubblicazione:
2010
Citazione:
Antibiotic Resistance in Staphylococcus aureus and Coagulase Negative Staphylococci Isolated from Goats with Subclinical Mastitis / Virdis, S; Scarano, Christian; Cossu, F; Spanu, V; Spanu, Carlo; DE SANTIS, Enrico Pietro Luigi. - In: VETERINARY MEDICINE INTERNATIONAL. - ISSN 2042-0048. - 2010:Article ID 517060(2010), pp. 517060.1-517060.6. [10.4061/2010/517060]
Abstract:
Antimicrobial resistance patterns and gene coding for methicillin resistance (mecA) were determined in 25 S. aureus and 75
Coagulase Negative Staphylococci (CNS) strains isolates from half-udder milk samples collected from goats with subclinical
mastitis. Fourteen (56.0%) S. aureus and thirty-one (41.3%) CNS isolates were resistant to one or more antimicrobial agents.
S. aureus showed the highest resistance rate against kanamycin (28.0%), oxytetracycline (16.0%), and ampicillin (12.0%). The
CNS tested were more frequently resistant to ampicillin (36.0%) and kanamycin (6.7%). Multiple antimicrobial resistance was
observed in eight isolates, and one Staphylococcus epidermidis was found to be resistant to six antibiotics. The mecA gene was not
found in any of the tested isolates. Single resistance against β-lactamics or aminoglicosides is the most common trait observed
while multiresistance is less frequent.
Coagulase Negative Staphylococci (CNS) strains isolates from half-udder milk samples collected from goats with subclinical
mastitis. Fourteen (56.0%) S. aureus and thirty-one (41.3%) CNS isolates were resistant to one or more antimicrobial agents.
S. aureus showed the highest resistance rate against kanamycin (28.0%), oxytetracycline (16.0%), and ampicillin (12.0%). The
CNS tested were more frequently resistant to ampicillin (36.0%) and kanamycin (6.7%). Multiple antimicrobial resistance was
observed in eight isolates, and one Staphylococcus epidermidis was found to be resistant to six antibiotics. The mecA gene was not
found in any of the tested isolates. Single resistance against β-lactamics or aminoglicosides is the most common trait observed
while multiresistance is less frequent.
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Staphylococci; antibiotic resistance; Subclinical mastitis
Elenco autori:
Virdis, S; Scarano, Christian; Cossu, F; Spanu, V; Spanu, Carlo; DE SANTIS, Enrico Pietro Luigi
Link alla scheda completa:
Pubblicato in: