蒙德维多沙门氏菌是少见的沙门氏菌血清型。本文报道该菌的一次新生儿室和婴儿室的院内感染,分析了21例大便培养阳性的腹泻患儿的临床特征,并讨论其治疗体会。新生儿常为非伤寒沙门氏菌感染的主要侵袭对象,为了避免感染的发生必须严格执行消毒隔离制度;并应及时隔离可疑病例,及早检疫以尽量控制已经发生的感染进一步蔓延。 Salmonella mondevidella is a rare Salmonella serotype. This article reports a nosocomial infection of the newborn room and baby room of the bacterium, and analyzes the clinical features of 21 cases of stool-positive diarrhea children and discusses the treatment experience. Neonates are often the main target of non-typhoid Salmonella infection. In order to avoid the occurrence of infection, disinfection and isolation system must be strictly implemented. In addition, suspicious cases should be isolated in time and quarantine should be conducted as soon as possible so as to control further the spread of the infection that has occurred.