Peter Maslak and Lisa Southern, Memorial Sloan-Kettering Cancer Center

Peter Maslak and Lisa Southern, Memorial Sloan-Kettering Cancer Center

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Ehrlichia are intracellular gram negative bacteria that can be transmitted by ticks to humans from dogs, deer, or horses. The organisms appear as a clusterlike inclusion (or morula; see arrow) within vacuoles of the host granulocytes.FIG1 

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