Antimicrobial Susceptibility and Clonal Relationship of Tetracycline Resistance Genes in netF-Positive Clostridium perfringens

NetF-producing type A Clostridium perfringens , a pathotype of C. perfringens , causes necrotizing enteritis in neonatal foals and necrotizing and hemorrhagic enteritis in dogs. Recent core genome multilocus sequence typing study revealed that netF + C. perfringens strains belong to two distinct clo...

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Veröffentlicht in:Microbial drug resistance (Larchmont, N.Y.) N.Y.), 2019-05, Vol.25 (4), p.627-630
Hauptverfasser: Mehdizadeh Gohari, Iman, Boerlin, Patrick, Prescott, John F.
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container_title Microbial drug resistance (Larchmont, N.Y.)
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creator Mehdizadeh Gohari, Iman
Boerlin, Patrick
Prescott, John F.
description NetF-producing type A Clostridium perfringens , a pathotype of C. perfringens , causes necrotizing enteritis in neonatal foals and necrotizing and hemorrhagic enteritis in dogs. Recent core genome multilocus sequence typing study revealed that netF + C. perfringens strains belong to two distinct clonal populations (clonal complexes I and II). There are no reports on susceptibility to antimicrobial drugs of isolates from this pathotype. The susceptibility to 13 different antimicrobial drugs of 49 netF + strains recovered from foals or dogs with necrotizing enteritis in Canada, the United States, and Switzerland was assessed using a commercial microdilution panel designed for anaerobic human pathogens. All isolates were highly susceptible to 12 antimicrobial agents, including all beta-lactams tested, such as penicillin G and ampicillin, as well as clindamycin, chloramphenicol, and metronidazole. The isolates consistently presented a reduced susceptibility or resistance to tetracycline, which was associated with previously described tetracycline resistance genes. Clonal complex I isolates ( n  = 41) possessed the tetA408 (P) gene, whereas clonal complex II isolates ( n  = 8) possessed the tetA (P)- tetB (P) genes and were more likely to be fully resistant.
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subjects Ampicillin
Antibiotics
Antiinfectives and antibacterials
Antimicrobial agents
Bacteria
Chloramphenicol
Chloromycetin
Clindamycin
Clostridium perfringens
Dogs
Genes
Genomes
Hemorrhage
Hemorrhagic enteritis
Metronidazole
Multilocus sequence typing
Necrotizing enterocolitis
Neonates
Nucleotide sequence
Penicillin
Veterinary Medicine
β-Lactam antibiotics
title Antimicrobial Susceptibility and Clonal Relationship of Tetracycline Resistance Genes in netF-Positive Clostridium perfringens
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