Abstract
It has been shown that strains of Pasteurella haemolytica possess a soluble capsular substance which is a polysaccharide. A haemagglutination test is described in which the soluble polysaccharide was adsorbed to type O human red cells. These treated red cells were agglutinated in the presence of appropriate dilutions of specific immune sera. Fifty-one strains of P. haemolytica isolated from cases of shipping fever in Canada were found to be serologically homogeneous by means of the haemagglutination test. Strains of P. haemolytica from the U.S.A., Great Britain, and Europe were found to be serologically identical with the Canadian strains by the haemagglutination and conventional agglutination test.
Publisher
Canadian Science Publishing
Subject
Genetics,Molecular Biology,Applied Microbiology and Biotechnology,General Medicine,Immunology,Microbiology
Cited by
17 articles.
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