Food Safety Report: Panda Express, 491 Riverside Ave, Medford, MA 02155, USA 2 months ago • details 12 Suspected food poisoning. Symptoms: Diarrhea, Vomiting, Fever, Stomach Pain, Headache Suspected source: Panda Express Onset: 4 to 12 hours Duration: 12 to 24 hours Additional information: Food poisoning confirmed by local medical center