title: [Diagnostic and epidemiological significance of F-donor activity of Enterobacteria strains].
abstract: The study of the circulating strains of enteropathogenic Escherichia coli (EPEC), shigellae and salmonellae for the presence of F-factor (the conjunction factor) was carried out. The study revealed that 85% of Shigella flexneri strains 2a had conjugative (F)-factor. The proportion of such strains was 63% among EPEC of different serovars and 15% among Salmonella enteritidis. As 63% EPEC strains had hemolytic activity and were found to carry F-conjugative plasmid it should be taken into consideration in the identification of microorganisms. The presence of conjugation plasmids is an important epidemiological marker.
authors.affiliation: State University, Sumy, Mechnikov Research Institute of Microbiology and Immunology, Khahrkov, Ukraine.
authors.forename: V V
authors.initials: VV
authors.lastname: Lipovskaia
authors.forename: E M
authors.initials: EM
authors.lastname: Savinova
authors.forename: A G
authors.initials: AG
authors.lastname: D'iachenko
mesh_terms: D001431:Bacteriological Techniques; D001435:Bacteriophages / Q000235:genetics; D004755:Enterobacteriaceae / Q000235:genetics* / Q000302:isolation & purification / Q000472:pathogenicity; D004926:Escherichia coli / Q000235:genetics / Q000302:isolation & purification / Q000472:pathogenicity; D005144:F Factor / Q000032:analysis*; D005819:Genetic Markers; D006801:Humans; D017720:Molecular Epidemiology; D012475:Salmonella / Q000235:genetics / Q000302:isolation & purification / Q000472:pathogenicity; D012760:Shigella / Q000235:genetics / Q000302:isolation & purification / Q000472:pathogenicity
chemical_list: D005819:Genetic Markers