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Massive Outbreak of Escherichia Coli
O157:H7 Infection in School Children in Sakai City, Japan, Associated with
Consumption of White Radish Sprouts
Am J Epidemiol. 1999;150:787-96. [PMID: 10522649]
Michino H, Araki K, Minami S, Takaya S, Sakai N, Miyazaki M, Ono A, Yanagawa H.
Environmental Health Bureau, Ministry of Health and Welfare, Tokyo, Japan.
In July 1996, an outbreak of Escherichia coli O157:H7 infection occurred among
schoolchildren in Sakai City, Osaka, Japan. This outbreak developed in 13
North-East District and 34 Middle-South District elementary schools in the city.
All children hospitalized on July 17-19 had presented on July 8 (North-East
District) and July 9 (Middle-South District). School lunches served on July 1
and 8 in the North-East District and on July 1, 4, 8, and 9 in the Middle-South
District were proposed by a food consumption study to be associated with
infection. White radish sprouts from a single farm were the only uncooked food
common to the most highly implicated meals on the involved days in two school
districts (sweet and sour chicken with lettuce on July 8 in the North-East
District and chilled Japanese noodles on July 9 in the Middle-South District).
Two incidents of E. coli 0157:H7 in neighboring areas were also related to white
radish sprouts from the farm. The pulse-field gel electrophoresis patterns of
isolates from patients in these two districts and the neighboring areas were
identical. Thus, it was concluded that the cause of the outbreak was the white
radish sprouts shipped on July 7-9 from one particular farm.
Note: A related article can be found
at
Sprouts Cleared from
Deadliest Outbreak Attributed to Sprouts
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