Antigenic variants of influenza A virus (PR8 strain).  II.  Serological and immunological characteristics of variants derived from variants.
D000818:Animals; D000906:Antibodies; D000941:Antigens; D007106:Immune Sera; D009980:Influenza A virus; D051379:Mice; D009975:Orthomyxoviridae / Q000276:immunology*
D000906:Antibodies; D000941:Antigens; D007106:Immune Sera
ANTIGENS AND ANTIBODIES; INFLUENZA VIRUSES/immunology