title: A mutant of hog cholera virus in the virus-carrier cell cultivated at a lower temperature.
mesh_terms: D000818:Animals; D006691:Classical Swine Fever / Q000276:immunology / Q000382:microbiology*; D046508:Culture Techniques; D005827:Genetics, Microbial; D006358:Hot Temperature; D007668:Kidney; D009154:Mutation; D009975:Orthomyxoviridae / Q000302:isolation & purification*; D013552:Swine