Food Safety Report: Grapes, Sam's Club, Bay Rd, Saginaw, MI, USA 3 months ago • details 119 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Headache Suspected source: Grapes from sams Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: 2 people Additional information: Pesticides? On graoes. Sams club. Bay rd saginaw mi