Adler and Ellenbogen (1934) saw Eperythrozoa in blood smear
from a splenectomized calf; these they named Eperythrozoon
wenyoni. Similar parasites were observed independently by Neitz
and Quinlan (1934) in smears from several splenectomized calves.
A detailed study of this infection could not be undertaken because
under the conditions of the experiments accidental natural infection
could not be excluded. Further, the clinical picture in a number of
the animals was complicated by concurrent infections of piroplasmosis,
anaplasmosis, theileriasis, or spirochaetosis.
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