Public Health Seattle King County (PHSKC) officials investigated an outbreak of gastroenteritis with vomiting, nausea, and diarrhea associated with Irene Thai Cuisine located in Woodinville, Washington. As many as 6 people became ill after eating food delivered from the restaurant on September 30, 2016. there was no laboratory confirmation of the etiology, but symptoms were suggestive of norovirus. No one was hospitalized and no one died.