Efficacy of the influenza virus subunit vaccine in 1970.
D001315:Australia; D004196:Disease Outbreaks; D006306:Health Surveys; D006801:Humans; D007114:Immunization; D007252:Influenza Vaccines / Q000592:standards / Q000627:therapeutic use*; D007251:Influenza, Human / Q000453:epidemiology; D009975:Orthomyxoviridae / Q000302:isolation & purification
D007252:Influenza Vaccines