Abstract:Objective To trace and detect the pathogen causing repeated diarrhea in a 9-month-old infant, and to provide evidence for the diagnosis of the illness. Methods According to the epidemiological survey, the infant’s stool, goat milk powder, rice flour and feeding bottles were sampled for the isolation and cultivation of common enteric pathogenic bacteria, and the isolated strains were subjected to pulsed field gel electrophoresis (PFGE) and antimicrobial susceptibility testing. Results After weaning, the infant drank goat milk as the staple food. Then he appeared repeated fever with diarrhea symptoms about half a month, and recovered after treatment with cefotaxime and vitamin C. Four strains of Enterobacter sakazakii were isolated from the stool sample, goat milk powder and two feeding bottles of the infant. The PFGE Results showed that 3 strains of Enterobacter sakazakii, including 1 strain isolated from goat milk powder and 2 strains from eluent samples of the 2 feeding bottles, shared the same PFGE pattern, which had 64.3% similarity with 1 strain isolated from the stool sample. Antimicrobial susceptibility testing indicated that the 4 strains of Enterobacter sakazakii were all sensitive to 10 antibiotics tested, including ampicillin, chloramphenicol, ciprofloxacin, azithromycin, imipenem, ceftazidime, gentamicin, nalidixic acid, compound sulfamethoxazole and tetracycline. Conclusions The pollution of Enterobacter sakazakii in infant formula goat milk powder should not be ignored, which may cause serious potential risk.
龙奇志, 何志敏, 陈友群, 林伟, 王岚, 胡世雄, 彭文伏, 贾华云. 一例由阪崎肠杆菌感染引起的婴儿腹泻调查[J]. 实用预防医学, 2017, 24(8): 954-956.
LONG Qi-zhi, HE Zhi-min, CHEN You-qun, LIN Wei, WANG Lan, HU Shi-xiong, PENG Wen-fu, JIA Hua-yun. One case of infant diarrhea induced by Enterobacter sakazakii infection. , 2017, 24(8): 954-956.
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