Asian influenza in the Panama Canal zone: isolation of a virus variant and protective effect of a vaccine containing A2/Japan/305/57.
D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control*; D009975:Orthomyxoviridae; D010176:Panama; D014611:Vaccination
D007252:Influenza Vaccines