title: Unexpected isolation of a Newcastle disease virus.
mesh_terms: D000818:Animals; D002645:Chickens; D003333:Coronaviridae Infections / Q000382:microbiology / Q000662:veterinary*; D001351:Infectious bronchitis virus / Q000302:isolation & purification; D009522:Newcastle disease virus / Q000302:isolation & purification*; D011201:Poultry Diseases / Q000382:microbiology*