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Epidemiol Health : Epidemiology and Health



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Original Article An epidemiological study on outbreaks of food poisoning in some industries
Yong Tae Yum, Dong Yun Seo
Epidemiol Health 1988;10(2):204-209
DOI: https://doi.org/
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Since the author was asked to be in charge of special epidemiological investigation on outbreaks of food poisoning among workers of 3 industries(A, B and C) in Goo-Mee industrial complex, a survey team had made an epidemiological study to confirm diagnosis, and to verify source of infection and course of transmission for 5 days in Oct. 1986. The summarized results were as follows; 1. A total of 130 cases(6.5%) out of 2,000 workers in A industry on 29 August, 41 cases(14.7%) out of 880 workers in B on 14 October, and 30 cases(1.6%) out of 1,900 workers in C on 15 October 1986 were admitted to S. Hospital in Goo-Mee industrial complex complaining of high fever, vomiting, nausea, chillness, abdominal pain, headach under the impression of food poisoning. 2. Microorganisms of Vibrio parahemolyticus were cultured from stools of 39(33.6%) cases among 116 sampled cases. 3. Case-control studies to detect source of infection revealed that brown seaweeds in A and green lavers(sea lettuces) in B and C industries were the sources showing odd ratios of 12.5 and 16.2 with P values of less than 0.001. 4. In industry A, heated brown seaweeds were contaminated again with organisms in sea water from original container, and in industry B and C, raw green lavers which were immersed in sea water were served only after salting and seasoning without boiling process. Vibrio parahemolyticus in sea water was the source of contamination.

Epidemiol Health : Epidemiology and Health