[Efficacy of anti-influenza vaccination during the period of an influenza epidemic].
D000293:Adolescent; D000328:Adult; D004196:Disease Outbreaks / Q000276:immunology*; D006801:Humans; D007251:Influenza, Human / Q000517:prevention & control*; D008887:Military Medicine; D014586:USSR; D014611:Vaccination
Effektivnost' protivogrippoznoĭ vaktsinatsii v period épidemii grippa.