Wake County emergency medical responders have evaluated more than 150 people at a downtown hotel who all reported being ill with nausea and vomiting.
Emergency officials said Saturday that 15 of those evaluated required treatment.
The illnesses affected students and advisers attending the statewide YMCA Youth and Government conference at the Sheraton Hotel downtown.
Wake County Emergency Medical Services director Brent Myers said in a news release that the cause of the illnesses has not been determined.
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