Factors associated with antimicrobial-resistant Escherichia coli in zoo animals

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dc.creatorIshihara, K.
dc.creatorHosokawa, Y.
dc.creatorMakita, K.
dc.creatorNoda, J.
dc.creatorUeno, H.
dc.creatorMuramatsu, Y.
dc.creatorMukai, T.
dc.creatorYamamoto, H.
dc.creatorIto, M.
dc.creatorTamura, Y.
dc.date2012-10
dc.date2012-01-03T06:32:02Z
dc.date2012-01-03T06:32:02Z
dc.date.accessioned2026-06-27T17:10:26Z
dc.descriptionFactors associated with the carriage of antimicrobial-resistant Escherichia coli isolates were analysed among zoo animals. An association was observed between selection of amoxicillin as the first-line therapy and a significantly higher percentage of resistance to ampicillin (54.5%) from 11 animals treated with antimicrobials, compared with isolates from 32 untreated animals (9.4%). In addition, the percentage resistance to kanamycin (36.4%), gentamicin (27.3%), trimethoprim (27.3%) and tetracycline (63.6%) from 11 treated animals was significantly higher than those from 32 untreated animals (3.1%, 3.1%, 3.1% and 25%, respectively), although these antimicrobials were rarely used. All kanamycin-, gentamicin- and trimethoprim-resistant isolates and more than half of the tetracycline-resistant isolates from treated animals were also resistant to ampicillin. Co-resistance to other antimicrobials with ampicillin was suggested to contribute to an increasing of resistance towards antimicrobials that were rarely administered. The present investigation revealed an association of antimicrobial treatment with the spread of antimicrobial-resistant bacteria among zoo animals.
dc.identifierhttps://hdl.handle.net/10568/12597
dc.identifier.urihttp://hdl.handle.net/123456789/144397
dc.languageen
dc.publisherElsevier
dc.rightsLimited Access
dc.sourceIshihara K, Hosokawa Y, Makita K, Noda J, Ueno H, Muramatsu Y, Ueno H, Mukai T, Yamamoto H, Ito M and Tamura Y. 2012. Factors associated with antimicrobial-resistant Escherichia coli in zoo animals. Research in Veterinary Science 93(2):574-580.
dc.titleFactors associated with antimicrobial-resistant Escherichia coli in zoo animals
dc.typeJournal Article

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Instituto Internacional de Investigaciones Pecuarias (ILRI)