title: [EVOLUTION OF SOME BIOLOGICAL PROPERTIES OF 4 STRAINS OF INFLUENZA DURING SUCCESSIVE PASSAGES AT 29 C AND 41 C: RESEARCH ON COLD MUTANTS].
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002642:Chick Embryo; D003080:Cold Temperature; D006801:Humans; D007251:Influenza, Human; D007372:Interferons; D051379:Mice; D009154:Mutation; D009975:Orthomyxoviridae; D012106:Research; D013696:Temperature; D014776:Virus Cultivation
chemical_list: D007372:Interferons
keywords: CHICK EMBRYO; EXPERIMENTAL LAB STUDY; INFLUENZA VIRUSES; INTERFERON; MICE; MUTATION; TEMPERATURE; VIRUS CULTIVATION
vernacular_title: EVOLUTION DE QUELQUES PROPRI'ET'ES BIOLOGIQUES DE QUATRE SOUCHES GRIPPALES LORS DE PASSAGES SUCCESSIFS 'A 29C ET 'A 41C: RECHERCHE DE MUTANTS FROIDS.