Virus infections.
D002675:Child, Preschool; D000013:Congenital Abnormalities / Q000209:etiology*; D003587:Cytomegalovirus; D004769:Enterovirus Infections / Q000150:complications; D005260:Female; D005315:Fetal Diseases / Q000150:complications; D006506:Hepatitis A / Q000150:complications; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007251:Influenza, Human / Q000150:complications; D009107:Mumps / Q000150:complications; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious; D014777:Virus Diseases / Q000150:complications* / Q000517:prevention & control