| Project/Area Number |
23590816
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Public health/Health science
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| Research Institution | Toho University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KANEKO Akihiro 東海大学, 医学部, 教授 (30185920)
KANAYAMA Akiko 東邦大学, 看護学部, 助教 (90536195)
HASEGAWA Miyuki 東邦大学, 看護学部, 研究員 (30598446)
KOBAYAKAWA Shinichiro 日本医科大学, 医学部, 准教授 (90366469)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 抗菌薬耐性菌 / 日和見感染 / 医療・福祉 / 衛生 / 感染症 / 微生物 / 環境 |
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| Outline of Final Research Achievements |
Isolates recovered from 292 bidet toilets in a university hospital after sampling of water-jet nozzles and toilet seats with swabs were characterized using antimicrobial susceptibility. S. aureus was recovered from one water-jet nozzle and 9 toilet seats of which MRSA was found in a water-jet nozzle and a toilet seat of different toilet. P. aeruginosa was isolated from 6 water-jet nozzles, no isolate was shown to be multi-resistant. PFGE pattern analysis showed no similarity among the P. aeruginosa isolates. Both a nozzle and a seat of same toilet were contaminated with E. coli which were CTX-M-9 type ESBL producers and presented the identical PFGE pattern.
Our results suggest that the frequency of fecal contamination of water-jet nozzles in a hospital is high. Furthermore, the findings are consistent with transient contamination of electronic bidet toilets including MRSA and ESBL-producing organisms with identical PFGE patterns.
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