title: Basic principles and stages in testing new vaccines against respiratory viruses.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control; D012141:Respiratory Tract Infections / Q000517:prevention & control*; D014611:Vaccination; D014765:Viral Vaccines / Q000592:standards*; D014777:Virus Diseases / Q000517:prevention & control*; D014780:Viruses / Q000276:immunology
chemical_list: D007252:Influenza Vaccines; D014765:Viral Vaccines