Tochigi prefectural health officials announced Monday that 118 guests suffered food poisoning at a hotel in Nikko City earlier this month and that traces of food-borne Norovirus strains had been detected.

According to authorities, the Kinugawa Gyoen Hotel received complaints of gastrointestinal distress from male and female guests ranging in age from two to 80 between Dec 18 and Dec 22. TBS quoted a hotel spokesperson as saying symptoms included vomiting and diarrhea. Among the 118, eight guests and 11 chefs and kitchen staff were discovered to have the Norovirus strain in their systems.

Health officials said no one had to be hospitalized.

According to a hotel spokesperson, the 118 afflicted guests had eaten inside the hotel restaurant, dining on a variety of menu items, ranging from sashimi dishes to hot Japanese-style curries.

TBS quoted a prefectural health official as saying that the hotel is suspected of violating food hygiene laws, and was ordered to cease activity in its restaurant and kitchen. The hotel has remained closed since Dec 26.