title: Relationship of parakeet/Netherlands/449/75 virus to other avian paramyxoviruses.
abstract: Serological and physico-chemical properties of parakeet/Netherlands/449/75 (449) virus indicated a close relationship to paramyxovirus/Turkey/Wisconsin/68.
mesh_terms: D000818:Animals; D002645:Chickens; D008854:Microscopy, Electron; D010240:Parakeets / Q000382:microbiology; D010252:Paramyxoviridae / Q000145:classification* / Q000276:immunology / Q000648:ultrastructure; D013696:Temperature