Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Korean Med Sci. 2010 Aug;25(8):1128-33. doi: 10.3346/jkms.2010.25.8.1128. Epub 2010 Jul 21.

Epidemiology of foodborne Norovirus outbreak in Incheon, Korea.

Author information

  • 1Department of Gastroenterology, Ajou University School of Medicine, Suwon, Korea. dubogi@hanmail.net

Abstract

On June 14, 2008, an outbreak of gastroenteritis occurred among elementary school students in Incheon. We conducted an investigation to identify the source and described the extent of the outbreak. We performed a retrospective cohort study among students, teachers and food handlers exposed to canteen food in the elementary school. Using self-administered questionnaires we collected information on symptoms, days of canteen food eaten, food items consumed. Stool samples were collected from 131 symptomatic people and 11 food handlers. The catering kitchen was inspected and food samples were taken. Of the 1,560 people who ate canteen food, 117 were symptomatic cases, and the attack rate was 7.5%. Consumption of cucumber-crown daisy salad (RR=2.71), fresh cabbage mix (RR=2.23), dried radish salad (RR=3.04) and young radish kimchi (RR=2.52) were associated with illness. Sixty-four (45%) of the 142 stool specimens were positive for Norovirus. Norovirus was detected in 2 food handlers. Interviews with kitchen staff indicated the likelihood of contamination from an infected food handler to the dried radish salad during food processing. The excretion of Norovirus from asymptomatic food handlers may be an infection source of Norovirus outbreaks.

KEYWORDS:

Disease Outbreaks; Norovirus

PMID:
20676321
[PubMed - indexed for MEDLINE]
PMCID:
PMC2908779
Free PMC Article

Images from this publication.See all images (2)Free text

Fig. 1
Fig. 2
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for Korean Academy of Medical Sciences Icon for PubMed Central
    Loading ...
    Write to the Help Desk