Food Safety Report: Harvey's, Bloor Street West, Toronto, ON, Canada 1 year ago • details 12 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Chills Suspected source: Hamburger Onset: 12 to 24 hours Duration: Less than 4 hours Sick: Me Additional information: Came on suddenly a half hour ago. Ate the burger around 6pm last night.