Practicability of influenza surveillance by virus culture of children.
D000293:Adolescent; D000818:Animals; D001431:Bacteriological Techniques; D002642:Chick Embryo; D002648:Child; D002675:Child, Preschool; D000882:Haplorhini; D006801:Humans; D007251:Influenza, Human / Q000175:diagnosis*; D007668:Kidney; D008396:Maryland; D009297:Nasal Mucosa / Q000382:microbiology*; D009975:Orthomyxoviridae / Q000302:isolation & purification*; D010044:Outpatient Clinics, Hospital; D011159:Population Surveillance; D014776:Virus Cultivation