The haematology of experimentally-induced B divergens and E phagocytophila infections in splenectomised calves.

An examination was made of the haematology of spenectomised calves experimentally infected with Babesia divergens and Ehrlichia phagocytophila, inoculated separately or simultaneously. Animals infected with both pathogens had less marked changes in their haematology than those inoculated with either pathogen separately. This appeared to result from the early elimination of the more pathogenic Babesia as Ehrlichia spread through the granulocytes. The apparent suppression of Babesia by Ehrlichia would appear to merit further investigation.