Live influenza vaccines.
D000281:Administration, Intranasal; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis; D006801:Humans; D009980:Influenza A virus / Q000276:immunology; D007252:Influenza Vaccines / Q000008:administration & dosage*; D014613:Vaccines, Attenuated / Q000008:administration & dosage
D000914:Antibodies, Viral; D007252:Influenza Vaccines; D014613:Vaccines, Attenuated