Food Safety Report: Portillo's & Barnelli's Naperville, West Jefferson Avenue, Naperville, Illinois, USA 7 months ago • details 25 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting Suspected source: Portillos chopped salad, garlic bread Onset: 12 to 24 hours Duration: 12 to 24 hours Additional information: Na