Investigation on a food poisoning infected with Staphylococcus aureus and Norovirus

ObjectiveTo analyse a case of food poisoning induced by Staphylococcus aureus with norovirus infection in a school of Wenzhou, and to provide a scientific basis for effective control of similar incidents.

MethodsEpidemiological and field hygienic investigation were carried out on the diagnostic confirmed cases in terms of descriptive analysis, collection of field samples, cases and specimens from the related parties, bacteriology and virology detection.

ResultsA total of 96 cases were reported in this incident.The epidemiological links were built between the incidents and the roast chicken with potatoes which the patients had prior to the onset of illness.Staphylococcus aureus and its enterotoxin were found in six reserved food samples and stool specimens of canteen staff and patients.Eight stool samples of the patients showed Norovirus GⅡ nucleic acid positive.And the main symptoms were vomiting and diarrhea.

ConclusionAs key places for foodborne diseases prevention and control, schools shall create a long-term supervisory mechanism for intensified surveillance, enhance the management of food safety in order to control infectious sources better, and promote health education via various media for health improvement.