1995年5月秦皇岛市海港区卫生院儿科发生一起鼠伤寒沙门菌引起的院内感染。从5月5日至22日18天内全科共收住院病人32人,其中先后有18人继发鼠伤寒感染,发病率达56.25％;其中男6人,女12人;最小21日龄,最大12岁。32例住院病人中1岁以下14人,感染鼠伤寒的8人占57.14％;1岁以上的18人,感染鼠伤寒的10人占55.55％,无死 May 1995 Qinhuangdao City Harbor Hospital Pediatric Salmonella typhimurium caused by a nosocomial infection. From May 5 to 22, 18 days, the total number of inpatient patients was 32, of which 18 were followed-up with typhoid fever, the incidence rate reached 56.25%; 6 were males and 12 females; the minimum 21-day-old, Maximum 12 years old Among 32 inpatients, 14 were under 1 year of age, 8 were infected with typhoid fever, accounting for 57.14%; 18 were over 1 year old and 10 were infected with typhoid fever, accounting for 55.55%