Food Safety Report: Red Baron Frozen Pizza, Walmart Supercenter, Main Street, Shallotte, NC, USA 5 months ago • details 16 Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills, Headache Suspected source: Red Baron frozen pizza Onset: 4 to 12 hours Duration: 12 to 24 hours Sick: 2 people