最近几年,作者和苏联沙门氏菌病研究中心的研究证明,在苏联大部份地区沙门氏菌病的病原主要为条件致病性鼠沙门氏菌,尤其是其各种变种,称之为“医院菌株”。此菌株对多数抗生素耐药,可在外界环境和各种生化条件下长期存活,是导致医院内爆发流行的原因。这种爆发流行有其流行病学特点,即人是传染源;日常生活接触为传染 In recent years, the authors and studies by the Salmonella Research Center of the Soviet Union have demonstrated that the pathogens of Salmonellosis in most parts of the Soviet Union are mainly opportunistic Salmonella typhimurium, especially various variants of which are called “hospital strains.” This strain is resistant to most antibiotics and can survive long-term under the external environment and various biochemical conditions, which is the reason leading to outbreak in the hospital. This outbreak has its epidemiological epidemic epidemic characteristics, that is, people are sources of infection; daily life contact is contagious