Editorial: Viral cross-infections in children's wards.
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003428:Cross Infection / Q000517:prevention & control*; D006757:Hospital Units; D006801:Humans; D007223:Infant; D010564:Personnel, Hospital; D014777:Virus Diseases / Q000517:prevention & control* / Q000635:transmission