Food Safety Report: Red Barron Frozen Pizza, Shoreview, MN, USA 7 months ago • details 22 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Headache Suspected source: Red Barron frozen pizza Onset: Less than 4 hours Duration: 4 to 12 hours Sick: 3 people