位于北海道十胜地区音更町的“大平原酒店”发生诺如病毒引发的群体性食物中毒事件，140名客人用餐后出现腹泻、呕吐、发烧等症状。

The "Daiheigen Hotel" in Tokachi Otofuke Town, Hokkaido, has been linked to a mass food poisoning incident involving norovirus, affecting 140 guests who experienced vomiting¹, diarrhea, and fever. Local health authorities confirmed on April 19 that norovirus was detected in fecal samples from five hotel chefs and 11 guests. The hotel has suspended operations for a week to conduct thorough sanitation² measures and is expected to reopen on April 28.

Between April 8 and 12, 140 of the 627 guests who dined at the hotel's buffet³ restaurant developed symptoms ranging from diarrhea and vomiting to fever. The affected⁴ individuals, aged 3 to 88, included 51 who sought medical attention, with one woman in her 70s hospitalized. All patients have since shown improvement.

Health investigators⁵ traced the outbreak to norovirus detected in food prepared at the hotel. Samples from chefs and infected guests confirmed the presence of the highly contagious⁶ virus, which is known to spread through contaminated food, water, or surfaces.