Immunity of tick-exposed seronegative and seropositive small stock challenged with two stocks of Cowdria ruminantium

Nineteen per cent and 32% of serologically positive sheep and goats in heartwater endemic areas of the Republic of South Africa were susceptible to challenge with, respectively, the Ball 3 and Welgevonden stocks of Cowdria ruminantium. There was good correlation between the results of the indirect f...

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Veröffentlicht in:	Onderstepoort journal of veterinary research Jg. 56; H. 3; S. 185
Hauptverfasser:	Du Plessis, J L, Van Gas, L
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	South Africa 01.09.1989
Schlagworte:	Animals Antibodies, Bacterial - analysis Goats - immunology Heartwater Disease - immunology Rickettsiaceae - immunology Sheep Sheep Diseases - immunology
ISSN:	0030-2465
Online-Zugang:	Weitere Angaben
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