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Use of Commercial Swine Live Attenuated Vaccine to Control an Outbreak in Commercial Cage-Free Layer Chickens. | LitMetric

Use of Commercial Swine Live Attenuated Vaccine to Control an Outbreak in Commercial Cage-Free Layer Chickens.

Avian Dis

The Roslin Institute and The Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG Scotland, United Kingdom.

Published: September 2019

AI Article Synopsis

Article Abstract

septicemia was diagnosed in three cage-free commercial layer flocks from Washington State that experienced an increase in mortality and slight drop in egg production. was isolated from multiple organs and from environmental samples. An agar gel diffusion test of several isolates confirmed the presence of serotype 1b, and multiplex real-time PCR of the surface protective antigen (Spa) gene confirmed presence of . Bacitracin administered via the water reduced mortality minimally and only for a short period of time. Mortality was finally controlled by vaccination with a live attenuated swine vaccine delivered via the drinking water. This is the first report describing the use of an attenuated vaccine to control an outbreak in a chicken flock.

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Source
http://dx.doi.org/10.1637/12004-112118-Case.1DOI Listing

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