Antigenic variants of influenza A virus (PR8 strain). VI. Results of repeated passages of the same variant in mice immunized with monovalent homologous vaccine or polyvalent vaccine.
D000818:Animals; D009980:Influenza A virus; D051379:Mice; D009975:Orthomyxoviridae / Q000276:immunology*; D014611:Vaccination; D014612:Vaccines
D014612:Vaccines
INFLUENZA VIRUSES/immunology