title: [Investigation on antibodies against respiratory tract virus in children].
mesh_terms: D000256:Adenoviridae / Q000276:immunology; D000293:Adolescent; D000914:Antibodies, Viral / Q000032:analysis* / Q000276:immunology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009975:Orthomyxoviridae / Q000276:immunology; D012136:Respiratory Syncytial Viruses / Q000276:immunology; D012141:Respiratory Tract Infections / Q000276:immunology*; D018108:Respirovirus / Q000276:immunology
chemical_list: D000914:Antibodies, Viral