ABSTRACT
The results of the typing of the biochemical and serological variants of Yersinia enterocolitica strains from the USSR (10 strains) and other countries (32 strains) are presented. Most of these strains, belonging to biovars 1 and 5, could be determined with the use of the antigenic scheme which was proposed by Knapp only for biovars 2, 3 and 4. The strains isolated in Leningrad and in the Far East were found to belong to serovars 6,30; 7,8; 12,25 and 5B according to the scheme proposed by Wauters; of these, the last one corresponds to serovar IV in Knapp's scheme.
Subject(s)
Yersinia/classification , Agglutination Tests , Carrier State/microbiology , Asia, Eastern , Genetic Variation , Humans , Russia , Serotyping , USSR , Yersinia/immunology , Yersinia/metabolism , Yersinia Infections/microbiologySubject(s)
Bacteriocins/biosynthesis , Bacteriolysis , Bacteriophages/isolation & purification , Yersinia/physiology , Bacteriocins/isolation & purification , Bacteriophage Typing , Bacteriophages/immunology , Enterobacteriaceae , Lipopolysaccharides/physiology , Lysogeny , Microscopy, Electron , Receptors, Virus/physiology , Serotyping , Yersinia pestis/physiologyABSTRACT
Sensitivity of 33 foreign and 10 native strains of Y. enterocolitica to tetracycline, aminoglycosides, penicillins, levomycetin and polymyxin was studied. All the strains proved to be resistant to penicillin, oxacillin and ampicillin: they produced penicillinase. The level of resistance to penicillin did not always correlate with penicillin activity. The ability of the native strains to acquire R-factor in vitro from Coli bacteria was shown.
