title: Reinfection of chickens vaccinated by the intranasal method with live B1 Newcastle disease virus.
authors.forename: E R
authors.initials: ER
authors.lastname: DOLL
authors.forename: M E
authors.initials: ME
authors.lastname: WALLACE
authors.forename: W H
authors.initials: WH
authors.lastname: McCOLLUM
mesh_terms: D000818:Animals; D002645:Chickens; D008460:Meat; D009521:Newcastle Disease; D009522:Newcastle disease virus; D011200:Poultry