Studies on the toxicity of influenzal viruses; immunization of mice against the toxic activity of influenzal viruses; a new potency test for the assay of vaccines of influenzal virus.
D000818:Animals; D006801:Humans; D007109:Immunity; D007114:Immunization; D007252:Influenza Vaccines; D007251:Influenza, Human; D051379:Mice; D009975:Orthomyxoviridae; D014611:Vaccination; D014612:Vaccines
D007252:Influenza Vaccines; D014612:Vaccines
INFLUENZA/immunity; INFLUENZA/vaccine; INFLUENZA/virus