Hong Kong restaurants are urging authorities to clearly identify the sources of risky raw oysters after a rise in food poisoning cases linked to norovirus. Between February 1 and 12, 37 cases of food poisoning occurred, with Korean oysters linked to 13 cases. Diners are now avoiding raw oysters, especially those from Asia, preferring oysters from European markets like Spain, France, and Ireland. "Hong Kong people love eating oysters," said Wilson Lau, director of an oyster restaurant in Yuen Long. "But some people may have just heard the news, do not comprehend the issue clearly and may even think all oysters are problematic. It will affect the business of many other restaurants. Therefore, when the government releases information, it should say clearly where the problematic oysters are from. It is now like we are tarred with the same brush [as outlets linked to problematic oysters]." The Centre for Food Safety stated that some patients had consumed oysters from multiple markets, including South Korea, Spain, France, Japan, and Ireland. The calls come ahead of the Lunar New Year, a crucial season for oyster sellers, as demand drops amid health warnings.