when virulence plasmid ( 42-44 mdal ) positive and negative yersinia pseudotuberculosis i and yersinia enterocolitica 0:8 and 0:9 were tested in the guinea pig eye model the following order of pathogenicity was observed : plasmid-positive y. pseudotuberculosis i ( death of the animal ) greater than plasmid-negative y. pseudotuberculosis i approximately equal to plasmid-positive y. enterocolitica 0:8 ( severe conjunctivitis ) greater than plasmid-positive y. enterocolitica 0:9 ( mild conjunctivitis ) greater than plasmid-negative y. enterocolitica 0:8 and 0:9 ( no effect ) .
C0015392
eye
C0009763
conjunctivitis