Figure 1. Ehrlichia chaffeensis morulae in a peripheral blood monocyte from a patient with human monocytotropic ehrlichiosis (A, arrows). Anaplasma phagocytophilum morulae in a peripheral blood neutrophil from a patient with human granulocytic anaplasmosis (B, arrows; Wright stain; original magnification ×400). Note the small blue inclusions (morulae). These may appear stippled or as clusters of small coccoid to coccobacillary forms.
Figure 2. Suggested diagnostic algorithm for HME and HGA. Clinical, laboratory, and treatment approach to patients who present with nonspecific fever and a history of exposure to ticks.