The Prevalence of Antimicrobial-Resistant Escherichia coli in Two Species of Invasive Alien Mammals in Japan

Journal of Veterinary Medical Science

Kozo TAKASE¹  Yasuhiro KAWAMOTO²  Atsushi MIYAMOTO¹  Ichiro NAKAMURA²  Takeshi OBI¹  Ayano NAKAYAMA⁴  Go OGURA⁵  Masanobu TAMAKI²  Kei MIYAZAKI⁴  Yoko SAKEMI³  Tatsuzo OKA¹ 

[1] Department of Veterinary Science, Faculty of Agriculture, Kagoshima University;Department of Subtropical Agro-Production Sciences, Faculty of Agriculture, University of the Ryukyus;Soo Livestock Hygiene Service Center;Department of Bioproduction, Faculty of Agriculture, University of the Ryukyus;Department of Subtropical Agro-Environmental Sciences, Faculty of Agriculture, University of the Ryukyus

关键词: antimicrobial-resistance of invasive alien mammals;    antimicrobial-resistant Escherichia coli;    Japanese weasel;    small Asian mongoose;    small isolated island;   

DOI  :  10.1292/jvms.10-0525

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(21)Cited-By(1)The prevalence of antimicrobial resistance in 128 Escherichia coli isolates was investigated in two species of invasive alien mammals (IAMs): the small Asian mongoose (SAM) and Japanese weasel (JW). The SAM is found on the main island of Okinawa, Japan, where a large number of livestock is available, and the JW is present on a small island, where is isolated from the main island, and have a small number of livestock. We focused on the two IAMs, inhabiting under the different environments, and compared their prevalence of antimicrobial-resistant E. coli. In the comparison of the frequencies of antimicrobial-resistant E. coli isolates between the SAM and JW, JW showed significantly higher prevalence of resistance against three drugs, ampicillin, chlortetracycline and nalidixic acid, compared with SAM's test results (P<0.05). The blaTEM gene and the aph1 gene were detected in 35 subjects (91%) of ampicillin-resistant isolates and 6 subjects (100%) of kanamycin-resistant isolates, respectively. The tet (A) gene was detected in 62 subjects (46%) of CTC-resistant isolates, and the tet (B) gene was detected in 25 subjects (8%) of those in IAM. The present results suggest that some IAMs were the carrier of antimicrobial-resistant bacteria and their genes, and the frequencies of these resistances were different between two IAM species.

【 授权许可】

Unknown