A Raleigh, North Carolina sushi restaurant, Sushi Nine, is at the center of more than 240 customer reports of illness, reaching back as far as November 28, when the first symptoms were reported. Local Wake County Environmental Services confirmed three norovirus cases as being linked to the restaurant, but the remaining cases are still under investigation. The restaurant voluntarily closed for 48 hours on December 5, to perform sanitizing and allow inspectors to examine the premises for clues to the source of the outbreak. No new cases were reported when the restaurant reopened on December 8 following that deep cleaning.