title: Childhood infection caused by Ehrlichia canis or a closely related organism.
mesh_terms: D000818:Animals; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D004536:Ehrlichia / Q000302:isolation & purification; D006801:Humans; D008231:Lymphopenia / Q000209:etiology / Q000469:parasitology; D008297:Male; D012288:Rickettsiaceae Infections / Q000209:etiology / Q000469:parasitology*; D013984:Tick Infestations / Q000150:complications*