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2023 Fiscal Year Final Research Report

Role of companion animals on cross-species transmission of antimicrobial-resistant bacteria

Research Project

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Project/Area Number 20K10432
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 58020:Hygiene and public health-related: including laboratory approach
Research InstitutionOsaka Metropolitan University (2022-2023)
Osaka Prefecture University (2020-2021)

Principal Investigator

SHIMADA Terumasa  大阪公立大学, 大学院獣医学研究科, 教授 (00264812)

Co-Investigator(Kenkyū-buntansha) 安木 真世  大阪公立大学, 大学院獣医学研究科, 准教授 (40589008)
Project Period (FY) 2020-04-01 – 2024-03-31
Keywords薬剤耐性感染症 / 伴侶動物 / 伝播 / 第三世代セファロスポリン耐性腸内細菌科細菌
Outline of Final Research Achievements

Companion animals might be reservoirs for cross-species transmission because of their close contact with humans. However, current knowledge in this field is limited; therefore, the role of companion animals in cross-species transmission remains to be elucidated. Herein, we whole-genome sequenced ESBL/AmpC Enterobacteriaceae from companion animals, environments, and animal health workers and comparison-analyzed them. The results suggest that at least some ESBL/AmpC extraintestinal pathogenic Esherichia coli and bla-coding plasmids can be transmitted betwenn humans and companion animals. Thus, companion animals can act as an important reservoir for ESBL/AmpC Enterobacteriaceae in the community.

Free Research Field

伴侶動物臨床獣医学

Academic Significance and Societal Importance of the Research Achievements

本研究は、全ゲノム配列情報を基にした宿主間の比較ゲノム解析から、ヒトと伴侶動物間における耐性菌(特にESBL/AmpC産生腸内細菌科細菌)の伝播に関する新規学術知見を創出した。これらは、薬剤耐性感染症の伝播様式の理解に新たな視点を与えた点、今後の薬剤感染症伝播を研究する際の基盤知見となる点において学術的意義がある。一方本研究の社会的意義は、今後の薬剤耐性感染症対策への貢献、すなわち医学領域では薬剤耐性感染症における媒介者としての伴侶動物の重要性の周知活動に向けた基盤知見、ならびに獣医学領域では臨床獣医師への抗菌薬の適切かつ慎重投与の啓発活動の基盤知見を創出した点にある。

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Published: 2025-01-30  

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