yersinia enterocolitica isolated from throats of swine in eastern and western canada.examination of the throat flora from swine in ontario for yersinia enterocolitica found the incidence of serotype o:3 to vary from 20% from tonsils to 50% for throat swabs and 55% for tongues. in contrast, there were no isolations of serotype o:3 from throat swabs taken from swine in the western provinces of british columbia and alberta. this incidence of serotype o:3 in swine correlates well with the human incidence of the same serotype which is 81% for all human isolations of y. enterocolitica ...19817332882
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