Norovirus has been detected in connection with an outbreak at an elementary school in Suncheon, South Jeolla Province, where 228 students reported symptoms of suspected food poisoning. Authorities have yet to confirm whether the virus entered through school meals or drinking water.
228 Students Affected as Norovirus Confirmed
The Suncheon Public Health Center said on the 27th that tests by the Jeonnam Institute of Health and Environment on human specimens from students suspected of infection confirmed the presence of norovirus.
Norovirus is a collective term for a group of viruses divided into several types based on genetic characteristics. The incubation period after infection is typically 12 to 48 hours, with vomiting, diarrhea and abdominal pain appearing abruptly and lasting one to three days. Healthy adults generally recover with adequate fluid intake, but children and older adults require closer attention because dehydration can progress rapidly.
Hygiene management is also important because the virus can still spread after symptoms disappear. The U.S. Centers for Disease Control and Prevention says the virus can be detected in stool for two weeks or more after recovery and recommends following preventive measures such as handwashing.
Students at the school began showing suspected food poisoning symptoms including vomiting, abdominal pain and diarrhea starting on the 17th. A full survey identified 228 students with symptoms. Jeonnam-Gwangju Special Metropolitan City, the city of Suncheon and the Suncheon Office of Education collected specimens from students and requested analysis to determine the cause.
Were School Meals the Source? Investigation Into Transmission Route Continues
Test results for school meals, facilities and drinking water have not yet been reported, leaving the route of transmission unconfirmed. Authorities are examining whether meals served on the 16th were linked to the infections and plan to take follow-up steps once the analysis is complete. If management problems are found in the group meal service, corresponding measures will be taken.
A similar case of suspected mass food poisoning at a school occurred earlier in Gongju, South Chungcheong Province. On June 16, students and teachers at an elementary school in Gongju showed similar symptoms, prompting health authorities to launch an emergency epidemiological investigation. At the school, which has about 980 students enrolled, the number of symptomatic cases rose to 365.
The school ran shortened morning classes through the 22nd of the same month and provided substitute meals instead of regular school lunches. Temporary closure was also considered at the time given the possibility of further spread.