title: Protection of chickens against renal damage caused by a nephropathogenic infectious bronchitis virus.
abstract: The ability of the infectious bronchitis (IB) Ma5 and 4/91 live-attenuated vaccines to protect against kidney damage caused by a nephropathogenic strain of IB virus (B1648) was investigated. Protection parameters considered were gross and microscopic renal pathology, and the use of a polymerase chain reaction to detect IB RNA in kidney tissue. By each parameter, Ma5 vaccine alone provided poor protection, but 4/91 alone or the combined program both protected well.
authors.forename: J K
authors.initials: JK
authors.lastname: Cook
authors.forename: J
authors.initials: J
authors.lastname: Chesher
authors.forename: W
authors.initials: W
authors.lastname: Baxendale
authors.forename: N
authors.initials: N
authors.lastname: Greenwood
authors.forename: M B
authors.initials: MB
authors.lastname: Huggins
authors.forename: S J
authors.initials: SJ
authors.lastname: Orbell