Asymptomatic Intramammary Infection with Multidrug-Resistant Gram-Negative Bacteria in a Research Dairy Farm : Incidence and Genetic Basis of Resistance
Journal of Veterinary Medical Science 73 巻 8 号
1089-1092 頁
2011-08-30 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Asymptomatic Intramammary Infection with Multidrug-Resistant Gram-Negative Bacteria in a Research Dairy Farm : Incidence and Genetic Basis of Resistance
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| 作成者 |
Hammad Ahmed M.
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| 収録物名 |
Journal of Veterinary Medical Science
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| 巻 | 73 |
| 号 | 8 |
| 開始ページ | 1089 |
| 終了ページ | 1092 |
| 抄録 |
Nonpathogenic and opportunistic bacteria are increasingly recognized as reservoirs of antibiotic resistance genes. However, nothing is known about the mechanisms of antibiotic resistance in such bacteria isolated from the udders of healthy animals. In this study, 150 Gram-negative strains isolated from milk samples of healthy dairy cows were screened for the presence of a large pool of antibiotic resistance markers. Strains carrying β-lactamase-resistance genes, including SHV-1, SHV-11, SHV-27, TEM-1, OXY-1, CTX-M-2 and class 1 integrons, were detected. Our findings give the first evidence that nonpathogenic and opportunistic bacteria carrying antibiotic resistance genes can asymptomatically invade healthy udders and suggest that they may play a role in the dissemination of antibiotic resistance genes to the other udder pathogens.
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| 著者キーワード |
antibiotic resistance
Gram-negative bacteria
udder
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| NDC分類 |
畜産業 [ 640 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
公益社団法人日本獣医学会
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| 発行日 | 2011-08-30 |
| 権利情報 |
Copyright (c) 2011 by the Japanese Society of Veterinary Science
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0916-7250
[DOI] 10.1292/jvms.10-0361
[NCID] AA10796138
[DOI] http://dx.doi.org/10.1292/jvms.10-0361
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