Serologic response of pigs to experimental infection with Yersinia enterocolitica serotype O9 and Brucella abortus
Mittal, K.R.; Tizard, I.R.
American Journal of Veterinary Research 42(3): 443-446
1981
ISSN/ISBN: 0002-9645 PMID: 6791534 Document Number: 177606
Groups of young pigs were inoculated with either Brucella abortus or Yersinia enterocolitica O:9 and their serum was analyzed to identify techniques by which infections with these organisms could be distinguished. Yersinia enterocolitica was capable consistently of inducing a significant anti-Brucella agglutinin response. By means of microplate agglutination, it was shown that homologous titers usually exceeded or were equal to heterologous titers. This technique was also capable of detecting Yersinia flagellar agglutinins. When a group of serum samples from healthy pigs was surveyed, it was found that none of the techniques tested were capable of unequivocally distinguishing between the 2 infections.