| evaluation of the pathogenicity and virulence of yersinia species isolated in edo and delta states of nigeria. | sixteen isolates of four species of yersinia comprising five of yersinia enterocolitica and yersinia fredricksenii, four of yersinia intermedia and two of yersinia kristensenii isolated from domestic and wild animals in villages in edo and delta states, nigeria, were evaluated for their pathogenicity using laboratory animal models and virulence characteristics tests which included autoagglutinability, calcium dependency for growth, heat-stable enterotoxin production and conjunctivities in guinea ... | 1993 | 8026357 |