我院婴儿室及新生儿病区同时发生鼠伤寒和山夫登堡沙门氏菌感染暴发流行。传染源分别是对外收入的腹泻患婴及带菌产妇。交叉感染主要环节是两病区混用尿布、消毒不彻底。流行特点:来势凶猛、波及面广、日龄愈小、感染性愈强、病势愈严重,预后亦差。发病率为45.5％(47/101),双重感染占14.9％,早期新生儿占61.7％,非母乳喂养儿占89.8％,病死率8.5％。 In our hospital infantile room and neonatal ward outbreak of Salmonella typhimurium and Salmonella infection simultaneously. The sources of infection were infants suffering from diarrhea and mothers with external income. Cross-infection is the main part of the two wards mixed with diapers, disinfection is not complete. Popular Features: fierce ferocious, wide spread, smaller age, the more infectious, the more serious the disease, the prognosis is poor. The incidence rate was 45.5% (47/101), double infections accounted for 14.9%, early infants accounted for 61.7%, non-breastfeeding children accounted for 89.8%, mortality was 8.5%.