Peer-reviewed veterinary case report
Use of Commercial Swine Live Attenuated Vaccine to Control anOutbreak in Commercial Cage-Free Layer Chickens.
- Journal:
- Avian diseases
- Year:
- 2019
- Authors:
- Crespo, Rocio et al.
- Affiliation:
- Washington State University · United States
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 severalisolates 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 swinevaccine delivered via the drinking water. This is the first report describing the use of an attenuated vaccine to control anoutbreak in a chicken flock.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/31967438/