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Title: EVALUATION OF COMMERCIAL LIVE AND INACTIVATED NEWCASTLE DISEASE VIRUS (B1) VACCINES FOR PROTECTION OF CHICKENS AND TURKEYS AGAINST THE 2002-03 CALIFORNIA EXOTIC NEWCASTLE DISEASE VIRUS

Author
item Kapczynski, Darrell
item King, Daniel

Submitted to: Trade Journal Publication
Publication Type: Trade Journal
Publication Acceptance Date: 6/23/2004
Publication Date: 7/14/2004
Citation: Kapczynski, D.R., King, D.J. 2004. Evaluation of Commercial Live And Inactivated Newcastle Disease Virus (B1) Vaccines For Protection Of Chickens And Turkeys Against The 2002-03 California Exotic Newcastle Disease Virus. Avian Insight, A Lohmann Animal Health International News Brief, V.3, p 1-3.

Interpretive Summary: Not required.

Technical Abstract: Newcastle disease vaccination is widely practiced in the USA with the majority of commercial broiler breeders, layers and turkeys receiving multiple vaccinations during their lifetime. The objectives of the present study were to extend the knowledge of protection against U.S. exotic Newcastle disease (END) virus by live and inactivated Newcastle disease virus (NDV) B1 vaccines, and determine immunity of SPF and chickens and commercial turkeys following lethal challenge with a California 2002-03 (CA02) END virus isolate. Results indicate a single vaccination with either live or inactivated NDV B1 vaccine increases antibody titers against NDV sufficient to protect birds against morbidity and mortality following lethal challenge, but does not prevent virus shed.