Food Safety Report: Duke’s, Uvero Alto, Punta Cana, Dominican Republic 1 year ago • details 32 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Stomach Pain, Chills Suspected source: Unwashed lettuce Onset: Less than 4 hours Duration: 12 to 24 hours Additional information: Food poisoning suspected within 3 hrs after eating Caesar salad at Duke's.