[Epidemiological investigation for outbreak of food poisoning caused by Bacillus cereus among the workers at a local company in 2010].

Objectives: In July 2 2010, a diarrhea outbreak occurred among the workers in a company in Gyeungju city, Korea. An epidemiological investigation was performed to clarify the cause and transmission route of the outbreak.

Methods: We conducted a questionnaire survey among 193 persons, and we examined 21 rectal swabs and 6 environmental specimens.