Segregation of influenza A, A2 and B virus strains into strains with varying sensitivity to horse serum inhibitor.
D006568:Herpesvirus 1, Cercopithecine; D006801:Humans; D007106:Immune Sera; D007155:Immunologic Factors; D007251:Influenza, Human; D009975:Orthomyxoviridae
D007106:Immune Sera; D007155:Immunologic Factors
IMMUNE SERUMS; INFLUENZA VIRUSES