Epidemiologic Investigation of Food-poisoning Outbreak at X Ranch Restaurant in Yilan County

Donald Dah-Shyong Jiang1, Shih-Tse Huang2, Hoa-Hsin Wu1,Shu-Tzu Chuang3, Wan-Chin Chen1

2014 Vol.30 NO.1

Correspondence Author: Donald Dah-Shyong Jiang

  • 1.Office of Preventive Medicine, Centers for Disease Control, Ministry of Health and Welfare, Taiwan
  • 2.Taipei Regional Center, Centers for Disease Control, Ministry of Health and Welfare, Taiwan
  • 3.Food Safety Division, Public Health Bureau Yilan County Correspondence Author: Donald Dah-Shyong Jiang

Abstract:

       On August 10, 2013, several members of different groups started to show gastrointestinal symptoms after consuming dinner food at X Ranch restaurant and were sent to several hospitals or clinics for medical care. We conducted a case-control investigation on one marathon association members. The results from 59 questionnaire data showed 40 persons fitted to the case definition with an attack rate of 67.8%. The figure of case onset date distribution indicates this cluster event is a food poisoning outbreak. The dish of the chopped garlic chicken shows statistically responsible for this food poisoning outbreak (P<0.05). According to the laboratory results, the characteristics of patients’ symptoms and incubation period, the etiologic pathogen of this outbreak can be determined to be Salmonella, group O7.