Possible food contamination with the excreta of housefly with enterohemorrhagic Escherichia coli O157 : H7
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- KOBAYASHI Mutsuo
- Department of Medical Entomology, National Institute of Infectious Diseases
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- SASAKI Toshinori
- Department of Medical Entomology, National Institute of Infectious Diseases
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- AGUI Noriaki
- Department of Medical Entomology, National Institute of Infectious Diseases
Bibliographic Information
- Other Title
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- 腸管出血性大腸菌O157 : H7保有イエバエの排泄による食品汚染の可能性
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Description
The number of enterohemorrhagic Escherichia coli O157: H7 (EHEC O157) in the female housefly feces excreted on foods such as raw beef and boiled potato was counted after contact with flies 3, 24 and 48 hr after 10^6 and 10^9 colony-forming units (CFU)/ml EHEC ingestion. In the experiment of ingestion of 10^6 CFU/ml, a small number of EHEC was detected in all harvested samples just after feeding contact. EHEC O157 of 10^2-10^8 CFU were detected from the harvested food around eosin-stained excreta, when the foods were preserved overnight at 29℃ after feeding contact. EHEC O157 of 10^2-10^5 CFU were counted from the harvested food with excreta of 10^9 CFU/ml ingested flies just after food contact. The EHEC O157 in the excreta on the foods drastically proliferated ranging 10^2-10^5-fold (10^2-10^4 and 10^3-10^8 CFU) overnight at 29℃. These results suggested that the small number of EHEC O157 excreted on the foods by EHEC O157-contaminated houseflies is a possible source of food poisoning under inadequate preservation. Complete sanitary arrangements with fly-proof structure in the cooking facilities and by food manufacturers is strongly recommended.
Journal
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- Medical Entomology and Zoology
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Medical Entomology and Zoology 53 (2), 83-87, 2002-06-15
The Japan Society of Medical Entomology and Zoology
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Details 詳細情報について
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- CRID
- 1390001204940468992
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- NII Article ID
- 110003819169
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- NII Book ID
- AN00021948
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- ISSN
- 21855609
- 04247086
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- NDL BIB ID
- 6213644
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed