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

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 combination...

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Vydané v:	Onderstepoort journal of veterinary research Ročník 57; číslo 3; s. 205
Hlavní autori:	du Plessis, J L, Potgieter, F T, van Gas, L
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	South Africa 01.09.1990
Predmet:	Animals Bacterial Vaccines - immunology Cross Reactions - immunology Heartwater Disease - immunology Heartwater Disease - prevention & control Rickettsiaceae - immunology Sheep Sheep Diseases - immunology Sheep Diseases - prevention & control Vaccination - veterinary
ISSN:	0030-2465
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