title: Antibody response against current H1N1 influenza virus after vaccination with last season's trivanent vaccine.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000914:Antibodies, Viral / Q000096:biosynthesis; D000917:Antibody Formation; D002648:Child; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D009980:Influenza A virus / Q000276:immunology*; D007252:Influenza Vaccines / Q000008:administration & dosage / Q000276:immunology*; D007251:Influenza, Human / Q000276:immunology; D008875:Middle Aged; D014611:Vaccination
chemical_list: D000914:Antibodies, Viral; D007252:Influenza Vaccines