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Lack of cross-protection between Cowdria ruminantium and Ehrlichia phagocytophila
1Department of Parasitology and Tropical Veterinary Medicine, University of Utrecht, The Netherlands.
Revue D'Elevage Et De Medecine Veterinaire Des Pays Tropicaux
|January 1, 1991
Abstract:
Antigenically distinct stocks of Cowdria ruminatium from Senegal and South Africa were compared with a Dutch isolate of Ehrlichia phagocytophila in cross-immunity trials in goats. There was a complete absence of cross-immunity between E. phagocytophila and C. ruminantium, despite previous observations that both rickettsial organisms have certain antigenic determinants in common.