Fate of resistant bacteria in Asian river basin and multiple drug resistance of beta-lactamase production bacteria

2015 Fiscal Year Final Research Report

• Project/Area Number: 25303019
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 海外学術
• Research Field: Civil and environmental engineering
• Research Institution: Kyoto University
• Principal Investigator: Yamashita Naoyuki 京都大学, 工学(系)研究科(研究院), 講師 (90391614)
• Co-Investigator(Kenkyū-buntansha): Tanaka Hiroaki 京都大学, 大学院工学研究科, 教授 (70344017) ; Mizuno Tadao 京都大学, 大学院工学研究科, 講師 (00422981) ; Ihara Masaru 京都大学, 大学院工学研究科, 研究員 (70450202)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 薬剤耐性菌 / 河川流域 / ラクタマーゼ

Outline of Final Research Achievements

Occurrence of resistant bacteria in Asian river basin such as Japan, China and Bangladesh was surveyed in this research. From the results in the Katsura river, Japan, ratio of resistant bacteria and values of Multi-Antibiotic Resistance (MAR) index for sewage effluents were higher than these for river water, which indicates that sewage effluents will be important sources of resistant bacteria in river basin. Similar results were obtained from the survey in China and Bangladesh river basin. On the MAR index obtained from Asian river basin, the values in Bangladesh were higher than these in Japan.

Free Research Field

環境工学