discriminatory power and application of ribotyping of yersinia enterocolitica o:3 in an epidemiological study.ribotyping performed with five restriction endonucleases was used in an attempt to subtype yersinia enterocolitica serotype o:3 and also as a tool for clonal analysis. dna from organisms under study (48 isolates from diarrheic human feces, 24 from food, and 5 reference strains) was tested by southern hybridization using a dna probe carrying an rrna operon from escherichia coli. strains were grouped into seven ribotypes by the hindiii restriction endonuclease, into five ribotypes by ncil, bg/l, a ...19968740857
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