Over the past five years from 2019 to 2023, there has been a total of 4,279 norovirus food poisoning cases, with a peak in winter, particularly in December to February, accounting for about 49% of all food poisoning cases. The majority of these cases were linked to the consumption of uncooked fish and shellfish, notably oysters. To prevent such infections, products labeled as 'heat cooking' or 'cooked food' must be heated to an core temperature of 85°C for at least an hour before consumption.