Food Safety Report: Boudin Bakery Cafe, Beach Street, San Francisco, CA, USA 1 year ago • details 118 Comments Comment Suspected food poisoning. Symptoms: Diarrhea, Nausea, Vomiting, Fever, Stomach Pain, Cramps, Chills, Headache Suspected source: Clam chowder Onset: 4 to 12 hours Duration: Several days