1975 influenza vaccine season.
D000328:Adult; D000368:Aged; D000956:Antigens, Viral / Q000032:analysis; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D007252:Influenza Vaccines / Q000008:administration & dosage; D007251:Influenza, Human / Q000517:prevention & control*; D009975:Orthomyxoviridae / Q000302:isolation & purification; D012621:Seasons
D000956:Antigens, Viral; D007252:Influenza Vaccines