More than 1000 people in South Korea are suffering from food poisoning linked to kimchi contaminated with norovirus.
Authorities said the popular fermented cabbage dish had been distributed to those now sick through school meals in the city.
They added that students and staff from 24 schools were among the patients with vomiting, diarrhoea and abdominal pains.
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Norovirus is very contagious and can be caught through touching contaminated surfaces – such as toilet flush handles – and from people who are already infected.
Most people recover in a few days without needing hospital treatment, but some become very ill.