In May 2018 Public Health Seattle King County (PHSKC) staff investigated an outbreak of norovirus at Anthony's Homeport located in Des Moines, Washington. Beginning May 15, 37 people from 11 separate meal parties became ill after eating food and beverage the restaurant. Eight employees experienced similar symptoms dating back to May 14. No one was hospitalized and no one died.

PHSKC Environmental Health investigators visited the restaurant on May 15. During the field visit, investigators learned of ill employees. The restaurant was required to conduct a thorough cleaning and disinfection before continuing business operations on May 16.