Article Text

Bovine leptospirosis: a serological and clinical study
  1. WA Ellis and
  2. SW Michno

Abstract

Antibodies to serotypes representing one or more of 10 Leptospira serogroups were detected in the sera of 1766 (49-1 per cent) cows and heifers out of a total of 3600 sera tested. Infection by the Hebdomadis serogroup was the predominant infection; antibodies to serotype sejroe were found in 1503 (41-8 per cent) sera. Antibodies to the Icterohaemorrhagiae (7-7 per cent) and Balllm (7-3 per cent) serogroups were the next most common, while antibodies to the Australis, Javanica, Canicola, Panama, Cynopteri, Pyrogenes and Autumnalis serogroups were detected in a small number of animals. Only the Hebdomadis and Icterohaemorrhagiae serogroups were associated with clinical disease.

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