STUDY OF RELATIONSHIP BETWEEN THE BACTERIA IN AIR AND THE CLINIC INFECTION
医院空气中细菌与临床感染的关系研究

The source of infectious bacteria is the first problem in provension of infection considered by the medical workers. In this paper, with the method of bacteria plasmid analysis, chromosome DNA restriction fragment length polymorphism analysis, drug resistance experiment (antibacterial drug, sterilizing drug) and so on. We confirmed that staphylococci of nosocomi is mainly fromair; but the gram-negative bacteriais mainly from the patient's pharyngeal portionp; and cause hospital infection indirectly. The drug resistance of gram-negative from air was lower than the same gram-negative bacilli's isolated from the patient. Moreever, kill bacteria the infectious strain is same strain in air. Above-mentioed results provided the important basis for control of the hoslpital infection.