Abstract
Sera from 2 000 dogs from southwestern Ontario were tested for antibodies to Brucella canis by a rapid slide agglutination test. The 100 positively reacting sera were tested by tube agglutination and immunoprecipitation (gel diffusion) tests. Thirty-one of these sera gave suspicious titres and one a positive titre in the tube agglutination test. Six of the rapid slide test positive sera gave positive reactions in immunoprecipitation tests. One dog was identified which was found to have a history very suggestive of B. canis infection. It was judged that 0.3% of sera tested showed serological evidence of B. canis infection. The complexities of the serological diagnosis of B. canis infection was apparent, in particular the tendency to false-positive results in the rapid slide agglutination test.
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Selected References
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