title: Vaccination of infants against influenza with polyvalent influenza hemagglutinin.
mesh_terms: D000906:Antibodies; D000917:Antibody Formation; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control*
chemical_list: D000906:Antibodies; D007252:Influenza Vaccines