致病性大肠杆菌是婴儿腹泻主要的病原之一。我院1973～1975年经1～3次大便培养分离出致病性大肠杆菌的腹泻患者135例,现报道如下。临床资料一、年龄:<1个月4例,1～3个月52例,4～6个月34例,7～12个月26例,1～2岁13例,2岁以上6例;1岁以内发病者占86%。二、喂养情况:91例曾详询喂养情况,其中母乳36例,代乳品33例,母乳加代乳 Pathogenic E. coli is one of the major pathogens of infant diarrhea. Our hospital from 1973 to 1975 by 1 to 3 times stool culture isolated pathogenic Escherichia coli diarrhea in 135 patients, are reported below. Clinical data A, age: <1 month in 4 cases, 1 to 3 months in 52 cases, 4 to 6 months in 34 cases, 7 to 12 months in 26 cases, 1 to 2 years in 13 cases, 6 years old over 6 years; Less than 1 year old accounted for 86%. Second, the feeding situation: 91 cases were detailed feeding situation, of which 36 cases of breast milk, milk substitute 33 cases, breast milk plus milk