Via CTV News, excerpt :
" Dozens of journalism students attending a conference in Victoria, B.C. were hit with a suspected Norwalk virus outbreak Saturday night.
Some of them remain isolated in their rooms under voluntary quarantine at the Harbour Towers Hotel after suddenly coming down with vomiting and diarrhea, common symptoms of the gastrointestinal virus.
Conference attendees estimate that between 50 and 60 people got sick. Health officials say about half a dozen of them were treated in hospital and released.