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Enteropathogenic <I>Escherichia coli</I> Strains Harboring Enteroaggregative <I>Escherichia coli </I> (EAggEC) Heat-stable Enterotoxin-1
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- YATSUYANAGI Jun
- Akita Prefectural Institute of Public Health
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- KINOUCHI Yu
- Akita Prefectural Institute of Public Health
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- SAITO Shioko
- Akita Prefectural Institute of Public Health
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- SATO Hiroyasu
- Akita Prefectural Institute of Public Health
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- MORITA Morihiro
- Akita Prefectural Institute of Public Health
Bibliographic Information
- Other Title
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- 腸管集合性大腸菌耐熱性エンテロトキシン-1 (EAST-1) 遺伝子を保有する, 食中毒様事例由来病原血清型大腸菌
- Enteropathogenic Escherichia coli Strains Harboring Enteroaggregative Escherichia coli (EAggEC) Heat-stable Enterotoxin-1
- Gene Isolated from a Food-borne Like Outbreak
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Description
A food-poisoning outbreak occurred in G Town in Minami-Akita District, Akita Prefecture on 16 January 1995. As the causative agent of the outbreak, Enteropathogenic Escherichia coli (EPEC) O126: NM were isolated. The isolates showed the same plasmid profile and antibiotic susceptibility patterns suggesting that the EPEC strains originated from same infectious source.<BR>The isolates lacked eae and EAF genes which were considered to play a significant role in the diarrheagenic mechanism of EPEC. On the otherhand, the isolates possessed Enteroaggregative E. coli (EAggEC) heat-stable enterotoxin-1 (EAST-1) gene, though they did not possess the agg A gene in which the coded structural subunit of Aggregative adherence fimbriae 1 (AAF/ 1) has been demonstrated to be involved in the expression of ability for EAggEC to adhere to cultured cells in aggregative pattern, indicating that the EPEC strains apparently differed from EAggEC.<BR>These data suggested that EAST-1 showed its enterotoxic activity to human, and that EPEC represented multiple category of E. coli strains with different diarrheagenic mechanism, in which both eae and EAST-1 might be involved.
Journal
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- Kansenshogaku Zasshi
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Kansenshogaku Zasshi 70 (1), 73-79, 1996
The Japanese Association for Infectious Diseases
