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. 1990 Sep;57(3):205-8.

An attempt to improve the immunization of sheep against heart-water by using different combinations of 3 stocks of Cowdria ruminantium

J L du Plessis  1 , F T Potgieter, L van Gas
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  • PMID: 2234869

An attempt to improve the immunization of sheep against heart-water by using different combinations of 3 stocks of Cowdria ruminantium

J L du Plessis et al. Onderstepoort J Vet Res. 1990 Sep.

Abstract

Neither sheep immune to the Ball 3, the Kwanyanga or the Mara stocks of Cowdria ruminantium nor those immunized with combinations of these 3 stocks were protected against challenge with the Mali stock. Against challenge with the Welgevonden stock, however, immunization with each of the 3 combinations and with single stocks effected a protective immunity.

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