[Inhibition of vaccination infections by a liquid factor of tissues infected with a homologous virus. IV. Antigenicity of the inhibiting factor].
D000956:Antigens, Viral; D003141:Communicable Diseases; D007106:Immune Sera; D014611:Vaccination; D014777:Virus Diseases / Q000276:immunology*
D000956:Antigens, Viral; D007106:Immune Sera
IMMUNE SERUMS; VIRUS DISEASES/immunology