细菌性食物中毒由进食被细菌或其外毒素污染的食物所致。分为两类:中毒感染:大量活菌随食物进入机体,在肠道内繁殖。可通过淋巴系进入血液引起全身感染。随食物进入机体和在机体内繁殖的大量菌体裂解释出内毒素,引起恶心、呕吐、腹痛、腹泻等急性胃肠炎症状。沙门氏菌属、副溶血性弧菌、大肠杆菌族、变形杆菌属、痢疾杆菌属、魏氏梭状芽胞杆菌等所致的中毒属中毒感染。毒素中毒:由细菌产生的外毒素引起。如葡萄球菌肠毒素、肉毒杆菌毒素。若只摄入活菌而无毒素存在者,不能引起发病。但只摄入毒素而无需活 Bacterial food poisoning is caused by eating food contaminated with bacteria or exotoxin. Divided into two categories: poisoning infection: a large number of live bacteria with the food into the body, breeding in the intestine. Through the lymphatic system into the blood cause systemic infection. With the food into the body and the body of a large number of bacteria multiply release endotoxin, causing nausea, vomiting, abdominal pain, diarrhea and other symptoms of acute gastroenteritis. Salmonella, Vibrio parahaemolyticus, Escherichia coli, Proteus, Shigella, Clostridium Weigels caused poisoning poisoning infection. Toxins poisoning: Exotoxin produced by bacteria. Such as staphylococcal enterotoxins, botulinum toxin. If you only take live bacteria without the presence of toxins, can not cause disease. But only toxins do not need to live