Source:http://linkedlifedata.com/resource/umls/id/C0021403
CSP: orthomyxovirus vaccine; the composition of the vaccine is changed each year in response to antigenic shifts and changes in prevalence of influenza virus strains; the vaccine is usually bivalent or trivalent, containing one or two influenza virus A strains and one influenza virus B strain.,MSH: Vaccines used to prevent infection by viruses in the family ORTHOMYXOVIRIDAE. It includes both killed or attenuated vaccines. The composition of the vaccines is changed each year in response to antigenic shifts and changes in prevalence of influenza virus strains. The vaccine is usually bivalent or trivalent, containing one or two INFLUENZAVIRUS A strains and one INFLUENZAVIRUS B strain.,HL7V3.0: <p>influenza virus vaccine, NOS</p>