Norwalk virus accounts for roughly one third of gastroenteritid epidemics. Stool is negative. Self limiting to 48h ETEC Most common cause of traveler's diarrhea. Symptoms include watery diarrhea, cramps. Occasional low grade fever.
Vomiting is uncommon.
Foods are typically cream filled. Diarrhea, cramping prominent vomiting without fever. 10h TOP Clostridium perfringens Follows ingestion of contaminated meat, poultry or legumes. Enterotoxin causes severe cramping. Lasts for 24h.