There are now 241 complaints from patrons of a sushi restaurant in Raleigh, NC, about foodborne illnesses.

The complaints against Sushi Nine began Nov. 28, according to local health department officials. The suspected pathogen is norovirus, with at least three restaurant customers testing positive. The number of sick people is growing quickly with 100 more reporting becoming sick since the previous updat on Dec, 9. 

Wake County Public Health and Wake County Environmental Services are investigating the outbreak.

“Unfortunately, norovirus can spread very easily, especially during holiday gatherings and parties, which include a lot of meal prep and catering,” Wake County Public Health Director Rebecca Kaufman said. “We continue to work closely with customers who visited Sushi Nine, restaurant staff and our partners with NCDHHS (North Carolina Department of Health and Human Services) to determine the source and extent of the outbreak.”

Owners of Sushi Nine closed the restaurant for two days for cleaning, but it has since reopened.

about norovirus

Symptoms of norovirus infection may include vomiting and/or diarrhea, nausea, muscle aches, fever, and headache, according to the Centers for Disease Control and Prevention. Symptoms typically start 12 to 48 hours after exposure and can last for one to three days. Most people recover without treatment, however some may need medical attention for dehydration.

People with norovirus infections can spread the infection easily to others. The virus can live on surfaces for long periods of time.