Investigation of A Norovirus Outbreak in A College, Kaohsiung City, 2016

DOI: 10.6525/TEB.201801_34(1).0001

Kung-Ching Wang1*, Wan- Chin Chen1, Min-Nan Hung2, Fang-Tzy Wu3,Hui-Chen Lin2, Mei-Man Hsu2, Tzu-Chieh Chang2

2018 Vol.34 NO.1

Correspondence Author: Kung-Ching Wang1*

  • 1Office of Preventive Medicine, Centers for Disease Control,Ministry of Health and Welfare, Taiwan
  • 2Kaohsiung-Pingtung Regional Center, Centers for Disease Control, Ministry of Health and Welfare, Taiwan
  • 3Center for Research, Diagnostics and Vaccine Development,Centers for Disease Control, Ministry of Health and Welfare,Taiwan


On December 11 and 12, 2016, the Department of Health of Kaohsiung City was notified of a foodborne outbreak in a college, involving 19 students. Initial investigation showed that among 123 teachers and students participating in a field trip, 54 suffered from symptoms including diarrhea, abdominal pain, nausea and vomiting (attack rate: 43.9%). After investigation, Taiwan Centers for Disease Control confirmed this foodborne outbreak that caused by norovirus GII.2. However, none of the 24 food items was significantly associated with illness. About 60% cases showed symptoms lasting longer than 72 hours. We suggested genotyping analysis to evaluate new norovirus variant if the illness duration was longer than usual in a norovirus outbreak.