title: Cold-adapted variants of influenza virus A. I. Comparison of the genetic properties of ts mutants and five cold-adapted variants of influenza virus A.
mesh_terms: D000222:Adaptation, Physiological; D000956:Antigens, Viral; D003080:Cold Temperature; D005796:Genes; D005816:Genetic Complementation Test; D014644:Genetic Variation; D009980:Influenza A virus / Q000276:immunology / Q000502:physiology*; D009154:Mutation; D011995:Recombination, Genetic; D013696:Temperature; D010948:Viral Plaque Assay
chemical_list: D000956:Antigens, Viral