Prevalence of antimicrobial resistance in bacteria isolated from Great
Cormorants (Phalacrocorax carbo hanedae) in Japan |
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| Authors: | Justice Opare ODOI Michiyo SUGIYAMA Yuko KITAMURA Akiko SUDO Tsutomu OMATSU Tetsuo ASAI |
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| Institution: | 1)Department of Applied Veterinary Sciences, United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan;2)Eaglet Office Inc., 348-1 Shimoitanami, Maibara-shi, Shiga 521-0306, Japan;3)Center for Infectious Diseases Epidemiology and Prevention Research, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan |
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| Abstract: | Wild birds are recognized as disseminators of antimicrobial-resistant (AMR) bacteria into the environment. Here, we isolated AMR indicator bacteria from 198 Great Cormorant cloacal swabs collected in Shiga (n=90), Oita (n=52), Gifu (n=29), and Gunma (n=27) Prefectures, Japan, in 2018 and 2019. In total, 198 Aeromonas spp. and 194 Escherichia spp. were isolated, and their antimicrobial susceptibility was examined. Aeromonas spp. were resistant to colistin (8.6%), nalidixic acid (4%), and other antimicrobials (<2%), with 3.0% positivity for mcr-3. Escherichia spp. showed resistance to colistin (3.1%), ampicillin (2.6%), tetracycline (2.1%), and other antimicrobials (<2%). This study shows the presence of AMR bacteria in Great Cormorants, indicating that these birds potentially disseminate AMR bacteria. |
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| Keywords: | Aeromonas species antimicrobial-resistant bacteria Escherichia species Great Cormorant |
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