Detection of Florfenicol Resistance Genes in Escherichia coli Isolated from Sick Chickens

Author:

Keyes Kathleen1,Hudson Charlene2,Maurer John J.2,Thayer Stephan2,White David G.3,Lee Margie D.1

Affiliation:

1. Department of Microbiology and Parasitology1 and

2. Department of Avian Medicine,2 College of Veterinary Medicine, The University of Georgia, Athens, Georgia 30602, and

3. Center for Veterinary Medicine, Food and Drug Administration, Laurel, Maryland 207083

Abstract

ABSTRACT Florfenicol is an antibiotic approved for veterinary use in cattle in the United States in 1996. Although this drug is not used in poultry, we have detected resistance to florfenicol in clinical isolates of avian Escherichia coli . Molecular typing demonstrated that the florfenicol resistance gene, flo , was independently acquired and is plasmid encoded.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

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