2023 Fiscal Year Final Research Report
Understanding and application of microbiota in building environment: creation of pathogen control theory by temperature control
Project/Area Number |
20K20613
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Research Category |
Grant-in-Aid for Challenging Research (Pioneering)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 58:Society medicine, nursing, and related fields
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Research Institution | Hokkaido University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
矢野 理香 北海道大学, 保健科学研究院, 教授 (50250519)
大森 亮介 北海道大学, 人獣共通感染症国際共同研究所, 准教授 (10746952)
大久保 寅彦 北海道大学, 保健科学研究院, 講師 (90762196)
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Project Period (FY) |
2020-07-30 – 2024-03-31
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Keywords | 人肌加温 / 高頻度接触面 / 病原細菌 / 院内感染 |
Outline of Final Research Achievements |
This research has shown that by adjusting temperature, one of the universal environmental factors, to match human skin, it is possible to reduce the survivability of pathogenic bacteria on dry surfaces, something that had not been previously assumed. The molecular mechanism may be that when human skin is heated, the body length of pathogenic bacteria cannot be properly controlled on a dry surface. We also demonstrated that the flow of people and their density are related environmental factors that determine the number of bacteria floating in a space. Based on these research results, we are currently working with companies with which we have signed joint research agreements to continue developing a new device that is sustainable, will not select for resistant bacteria, and can suppress and control the number of pathogenic bacteria on frequently touched surfaces.
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Free Research Field |
細菌学
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Academic Significance and Societal Importance of the Research Achievements |
病院や公共環境での耐性菌の循環を的確に捉え、耐性菌による感染症を未然に防ぐための対策を施すことが求めている。しかしこれまでの耐性菌対策は、消毒剤や抗菌剤による耐性菌の殺滅除去が主たるものであり、耐性菌の出現や生態系への不可逆的な打撃が懸念される。私達は本研究にて普遍的な環境因子の一つである温度を人肌に調節することにより乾燥面での病原細菌の生存性が著しく低下することを発見した。この発見により温度調節できる手摺やドアノブの設置などにより院内染症を撃滅することが可能となった。消毒剤や抗菌剤に頼らずに安心安全な環境を実現するための新たな感染症制御理論の一つの創成に寄与した。
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