title: Resistance to challenge with influenza A/Hong Kong/123/77 (H1N1) wild-type virus induced by live attenuated A/Hong Kong/123/77 (H1N1) cold-adapted reassortant virus.
mesh_terms: D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D009980:Influenza A virus / Q000276:immunology*; D007252:Influenza Vaccines / Q000276:immunology*; D007251:Influenza, Human / Q000276:immunology*
chemical_list: D007252:Influenza Vaccines