Association of Salmonella Serotypes with Quinolone Resistance in Broilers

Fluoroquinolone is widely used for the treatment of bacterial diseases, and the emergence of quinolone resistance has become a serious concern in recent years, owing to an increase and inappropriate use of antimicrobials. Here, we attempted to understand the differences in the emergence frequency of...

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Bibliographic Details
Published inFood Safety Vol. 6; no. 4; pp. 156 - 159
Main Authors Nakatsuchi, Ayumi, Inagaki, Mizuho, Sugiyama, Michiyo, Usui, Masaru, Asai, Tetsuo
Format Journal Article
LanguageEnglish
Published Japan Food Safety Commission, Cabinet Office, Government of Japan 2018
Subjects
broiler chicken
fluoroquinolone
quinolone resistance
Salmonella
Short Communication
Salmonella
fluoroquinolone
quinolone resistance
broiler chicken
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Summary:Fluoroquinolone is widely used for the treatment of bacterial diseases, and the emergence of quinolone resistance has become a serious concern in recent years, owing to an increase and inappropriate use of antimicrobials. Here, we attempted to understand the differences in the emergence frequency of quinolone-resistant bacterial variants in three Salmonella serotypes S. Infantis, S. Schwarzengrund, and S. Manhattan—which are mainly found in broiler industries in Japan. Emergence frequency tests for quinolone-resistant variants using enrofloxacin-containing agar plates and sequence analysis in the quinolone resistance-determining region (QRDR) of gyrA in DNA gyrase were performed. The results showed no significant difference in the emergence frequency among the three serotypes, and most of the resistant variants had mutations in the QRDR region. These findings suggest that differences in the serotypes tested are not associated with the emergence frequency of quinolone-resistant variants.
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These authors contributed equally to this study.
The contents of this article reflect solely the view of the author(s).
ISSN:2187-8404
2187-8404
DOI:10.14252/foodsafetyfscj.2018012