title: Inactivated vaccines. 1. Volunteer studies with very high doses of influenza vaccine purified by zonal ultracentrifugation.
mesh_terms: D000293:Adolescent; D000368:Aged; D000914:Antibodies, Viral; D000917:Antibody Formation; D002499:Centrifugation, Density Gradient; D002501:Centrifugation, Zonal / Q000379:methods; D005557:Formaldehyde; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage* / Q000009:adverse effects / Q000302:isolation & purification / Q000494:pharmacology; D007251:Influenza, Human / Q000517:prevention & control; D008875:Middle Aged; D014461:Ultracentrifugation / Q000379:methods; D014774:Virulence
chemical_list: D000914:Antibodies, Viral; D007252:Influenza Vaccines; D005557:Formaldehyde