title: Characterization of Nigerian strains of Newcastle disease virus.
abstract: Newcastle disease virus was isolated from outbreaks of the disease in vaccinated and unvaccinated poultry flocks representing commercial and backyard farms in different parts of Nigeria. On characterization, all 12 isolates were found to be velogenic.
mesh_terms: D000818:Animals; D002645:Chickens; D004196:Disease Outbreaks / Q000382:microbiology*; D009521:Newcastle Disease / Q000382:microbiology*; D009522:Newcastle disease virus / Q000302:isolation & purification*; D009549:Nigeria