[Etiology of Izumi fever].
D005334:Fever / Q000209:etiology*; D005767:Gastrointestinal Diseases / Q000209:etiology; D006506:Hepatitis A / Q000209:etiology; D006564:Herpesviridae; D004854:Herpesvirus 4, Human; D006801:Humans; D007244:Infectious Mononucleosis / Q000209:etiology; D008218:Lymphocytosis / Q000209:etiology; D012409:Rubella / Q000209:etiology; D012541:Scarlet Fever / Q000209:etiology