Journal
JOURNAL OF INFECTION AND CHEMOTHERAPY
Volume 17, Issue 5, Pages 722-725Publisher
SPRINGER TOKYO
DOI: 10.1007/s10156-011-0225-2
Keywords
Enterobacteriaceae; Extended-spectrum beta-lactamase (ESBL); Japanese
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Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Grants-in-Aid for Scientific Research [23590505] Funding Source: KAKEN
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In Japan, the prevalence of extended-spectrum beta-lactamase (ESBL) producers in hospital settings has shown an increasing trend. In the present study, we investigated the prevalence of the fecal carriage of ESBL-producing Enterobacteriaceae among healthy adults. Stool samples were collected for the phenotypic and genotypic identification of ESBL-producing Enterobacteriaceae. We found the prevalence of ESBL producers to be 6.4% by phenotypic identification, and 92.9% of them possessed the bla(CTX-M) gene. Among the CTX-M ESBL-producing Enterobacteriaceae, we identified 11 Escherichia coli and 2 Klebsiella pneumonia strains. The findings suggest that the fecal carriage of CTX-M-type ESBL producers by healthy people is rapidly increasing in Japan. This may be one of the causes of the increased spread of ESBL-producing bacteria in hospitals.
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