Monocytes from immunocompromised hosts may contain multiple morulae (Wright's stained blood film, original magnification ×300).
Reprinted by permission from Macmillan Publishers Ltd: Modern Pathology. Hamilton KS, Standaert SM, Kinney MC. Characteristic peripheral blood findings in human ehrlichiosis. Mod Pathol 2004; 17:512. Copyright © 2004.
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