Case 209. Ehrlichiosis (adult dog)

　 　 　 　
　
Peripheral blood smear of the dog infected with Ehrlichia canis
 　
　 　 　 　

　

 　 The monocyte contains a cluster of fine granules of infected E. canis in the cytoplasm (Giemsa). E. canis is not pathogenic to human. Ehrlichiosis is transmitted by tick bite.