title: Vaccination against Newcastle disease significance of strain diversity.
authors.affiliation: Danish National Laboratory, Arhus.
authors.forename: P H
authors.initials: PH
authors.lastname: Jørgensen
mesh_terms: D000818:Animals; D001717:Birds; D002645:Chickens; D004531:Eggs; D005260:Female; D005843:Geography; D017589:Immunization Programs / Q000458:organization & administration; D009521:Newcastle Disease / Q000276:immunology / Q000517:prevention & control*; D009522:Newcastle disease virus / Q000472:pathogenicity*; D013045:Species Specificity; D014611:Vaccination / Q000662:veterinary*