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1临床表现肠出血性大肠杆菌(EHEC)感染所致急性出血性结肠炎,主要由大肠杆菌O157∶H7血清型引起。感染的潜伏期为1-14 d,常见为4-8d。病前可有进食冷藏的半成品加工快餐食品史。分为无症状感染、轻度腹泻、出血性肠炎三种临床类型。典型的表现是急性起病,腹泻,初为水样便,继之为血性便。伴痉挛性腹痛,不发热或低热,可伴恶心、呕吐及上感样症状。无合并症者,7-10 d自然痊愈。少数患者于病程1~2
1 Clinical manifestations of enterohemorrhagic Escherichia coli (EHEC) infection caused by acute hemorrhagic colitis, mainly caused by E. coli O157: H7 serotypes. The incubation period of infection is 1-14 days, common for 4-8d. Pre-illness may have eating frozen semi-processed snack food history. Divided into asymptomatic infection, mild diarrhea, hemorrhagic enteritis three clinical types. A typical manifestation is acute onset, diarrhea, early as the watery stool, followed by bloody stools. With spasmodic abdominal pain, no fever or fever can be associated with nausea, vomiting and flu-like symptoms. No complications, 7-10 d naturally recovered. A small number of patients in the course of 1 to 2