On the epidemiology of influenza. II. Persistence of HI antibody titers after the outbreaks of influenza A and B with respect to the different course of infection.
D000328:Adult; D000906:Antibodies / Q000032:analysis*; D003604:Czechoslovakia; D004196:Disease Outbreaks / Q000276:immunology*; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology* / Q000276:immunology*; D008297:Male; D008887:Military Medicine; D009975:Orthomyxoviridae / Q000276:immunology*; D010507:Periodicity; D013997:Time Factors
D000906:Antibodies