title: Myocarditis associated with Echo type 7 infection in a leukemic child.
abstract: A 3 1/2-year-old boy, during the course of acute lymphocytic leukemia presented clinical, roentgenological and ECG signs of myocarditis, which disappeared completely within 1 1/2 month. ECHO type 7 virus was isolated from the faeces during the acute stage of the disease and rise in ECHO 7 neutralizing antibodies was demonstrated in paired sera of the patient. This unusual pathogenicity of ECHO 7 virus could be explained with the impairment of the host resistance induced by leukemia and immunosuppressive therapy.
mesh_terms: D002675:Child, Preschool; D004457:Echovirus Infections / Q000150:complications* / Q000382:microbiology; D029822:Enterovirus B, Human / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D006801:Humans; D007945:Leukemia, Lymphoid / Q000150:complications* / Q000382:microbiology; D008297:Male; D009205:Myocarditis / Q000209:etiology* / Q000382:microbiology