Nearly 200 people who attended a catered party at a downtown Seattle office building have become ill with norovirus, a public health official said on Monday, according to Reuters.
Public health officials closed all the food-service locations inside the Russell Investments Center in downtown Seattle, including a Starbucks location, said Dr. Meagan Kay, a medical epidemiologist for the public health department.
Norovirus can spread by an infected person, contaminated food, water or contaminated surfaces, the CDC said.
Nearly 200 people out of roughly 600 people who attended the party catered by California-based Bon Appetit Management Co. on Tuesday reported some level of sickness, Kay said. That number is likely to go up as the investigation continues into the cause of the outbreak, she said.
"The source of this illness remains unclear, and we are as eager as anyone to learn precisely how and when it began," the catering company said. "We have worked with our food safety experts to disinfect the surfaces in our facility and have taken all other necessary steps to ensure food safety."
Two people have been hospitalized overnight and eight people visited an emergency room for their illness, though the conditions of the patients were not known, Kay said.
Over the weekend, the building was disinfected in part to address vomiting in restrooms and to clean door knobs and other surfaces, Kay said.
The virus causes the stomach or intestines or both to become inflamed with acute gastroenteritis which leads to stomach pain, nausea and diarrhea, according to the Centers for Disease Control and Prevention.
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