title: A mutant of Parainfluenza type 1 virus with decreased capacity for growth at 38 C and 39 C.
mesh_terms: D000818:Animals; D006224:Cricetinae; D046508:Culture Techniques; D005827:Genetics, Microbial; D000882:Haplorhini; D007668:Kidney; D008168:Lung; D009154:Mutation; D018108:Respirovirus / Q000254:growth & development / Q000302:isolation & purification* / Q000472:pathogenicity; D013696:Temperature; D014132:Trachea; D014420:Turbinates; D014776:Virus Cultivation