Food Safety Report: Burrito, Walmart Supercenter, 1550 Leucadia Blvd, Encinitas, CA 92024, USA 2 years ago • details 18 Comments Comment Suspected food poisoning. Symptoms: Vomiting, Fever, Stomach Pain, Chills Suspected source: wallmart burrito Onset: Less than 4 hours Duration: 12 to 24 hours