Hemagglutination by influenza virus; the existence of two phases of influenza B virus.
D000371:Agglutination; D000373:Agglutinins; D006384:Hemagglutination; D006386:Hemagglutination Tests; D006801:Humans; D009981:Influenza B virus; D007251:Influenza, Human; D009975:Orthomyxoviridae
D000373:Agglutinins
AGGLUTININS AND AGGLUTINATION; INFLUENZA/virus