title: Respiratory virus vaccines. V. Field evaluation for efficacy of heptavalent vaccine.
mesh_terms: D000917:Antibody Formation; D002675:Child, Preschool; D004812:Epidemiologic Methods; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D009174:Mycoplasma / Q000276:immunology; D009500:Neutralization Tests; D009975:Orthomyxoviridae / Q000276:immunology; D012136:Respiratory Syncytial Viruses / Q000276:immunology; D012141:Respiratory Tract Infections / Q000453:epidemiology / Q000276:immunology* / Q000517:prevention & control*; D018108:Respirovirus / Q000276:immunology; D014611:Vaccination; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines