Antimicrobial susceptibility and molecular detection of chloramphenicol and florfenicol resistance among Escherichia coli isolates from diseased chickens

다국어 초록 (Multilingual Abstract)

Seventy Escherichia coli isolates recovered from diseased
chickens diagnosed with colibacillosis in Henan Province,
China, between 2004 and 2005 were characterized for
antimicrobial susceptibility profiles via a broth doubling
dilution method. Overall, the isolates displayed resistance
to trimethoprim-sulfamethoxazole (100%), oxytetracycline
(100%), ampicillin (83%), enrofloxacin (83%), and ciprofloxacin
(81%), respectively. Among the phenicols, resistance was
approximately 79% and 29% for chloramphenicol and
florfenicol, respectively. Molecular detection revealed that
the incidence rates of the floR, cmlA, cat1, cat2 and cat3
were 29, 31, 16, 13, and 0%, respectively. Additionally,
10% of the isolates were positive for both floR and cmlA.
As these antimicrobial agents may potentially induce
cross-resistance between animal and human bacterial
pathogens, their prudent use in veterinary medicine is
highly recommended.

참고문헌 (Reference)

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