Persistence of extended-spectrum ß-lactamase plasmids among Enterobacteriaceae in commercial broiler farms.
Microbiol Immunol
; 64(10): 712-718, 2020 Oct.
Article
em En
| MEDLINE
| ID: mdl-32761971
To clarify the persistence of extended-spectrum ß-lactamase (ESBL) producers, 13 plasmids from two broiler farms were analyzed. On the farm not using antimicrobials, one plasmid from Klebsiella pneumoniae isolated from a day-old chick was similar to that from Escherichia coli isolated a year later, with the deletion of two transposons. On the farm using antimicrobials, most circulating plasmids (eight out of nine) in a flock of 40-days-old chicks were identical, although one from K. pneumoniae had a deletion of a transposon carrying a class 1 integron containing aadA2 and dfrA12. Thus, ESBL plasmids persisted in the farms with or without antimicrobial agent use.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Plasmídeos
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Beta-Lactamases
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Escherichia coli
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Klebsiella pneumoniae
Limite:
Animals
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article