Virus infections.
D000208:Acute Disease; D002644:Chickenpox / Q000150:complications; D003586:Cytomegalovirus Infections / Q000150:complications; D006561:Herpes Simplex / Q000150:complications; D006562:Herpes Zoster / Q000150:complications; D006689:Hodgkin Disease / Q000150:complications; D006801:Humans; D007938:Leukemia / Q000150:complications; D008457:Measles / Q000150:complications; D009369:Neoplasms / Q000150:complications*; D014615:Vaccinia / Q000150:complications; D014777:Virus Diseases / Q000150:complications*