The viscerotropic pathotype of Newcastle disease virus.
D000818:Animals; D002645:Chickens; D009521:Newcastle Disease / Q000453:epidemiology / Q000276:immunology / Q000382:microbiology / Q000473:pathology / Q000517:prevention & control; D009522:Newcastle disease virus / Q000145:classification / Q000276:immunology / Q000302:isolation & purification / Q000472:pathogenicity; D011201:Poultry Diseases; D014774:Virulence