title: Neutralization antibody response to A2 Hong Kong influenza vaccine and its duration in school age children.
mesh_terms: D000906:Antibodies / Q000032:analysis; D000917:Antibody Formation; D002648:Child; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage / Q000009:adverse effects; D007251:Influenza, Human / Q000276:immunology*; D009500:Neutralization Tests; D014611:Vaccination
chemical_list: D000906:Antibodies; D007252:Influenza Vaccines