Effect of delivery method on the efficacy of Salmonella vaccination in chickens

To investigate whether the efficacy of live vaccines is influenced by the mode of vaccine delivery, a widely-used UK live commercial Salmonella Enteritidis vaccine was delivered to pullet chicks either by spray, in drinking water, or in combination with a bivalent vaccine containing inactivated Salm...

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Main Authors: Atterbury, Robert J., Morris, V., Harrison, D., Tucker, V., Allen, V.M., Davies, R.H., Carrique-Mas, J.J.
Format: Article
Published: BMJ Publishing Group 2010
Online Access:https://eprints.nottingham.ac.uk/45240/
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author Atterbury, Robert J.
Morris, V.
Harrison, D.
Tucker, V.
Allen, V.M.
Davies, R.H.
Carrique-Mas, J.J.
author_facet Atterbury, Robert J.
Morris, V.
Harrison, D.
Tucker, V.
Allen, V.M.
Davies, R.H.
Carrique-Mas, J.J.
author_sort Atterbury, Robert J.
building Nottingham Research Data Repository
collection Online Access
description To investigate whether the efficacy of live vaccines is influenced by the mode of vaccine delivery, a widely-used UK live commercial Salmonella Enteritidis vaccine was delivered to pullet chicks either by spray, in drinking water, or in combination with a bivalent vaccine containing inactivated Salmonella Enteritidis and Salmonella Typhimurium. The birds were subsequently challenged with 102 or 108 colony-forming units (cfu) of Salmonella Enteritidis through drinking water at either six or 20 weeks of age. Ten days after the challenge, the birds were euthanased and their caecal contents cultured for Salmonella. All of the vaccinated groups contained fewer Salmonella Enteritidis-positive birds than the unvaccinated groups. The ‘spray-vaccinated’ group contained significantly fewer Salmonella Enteritidis-positive birds than the ‘water-vaccinated’ group after challenge with 108 cfu at 20 weeks. However, there was little or no difference at the other challenge time points between the groups that received vaccine through different modes of delivery.
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publishDate 2010
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spelling nottingham-452402020-05-04T20:24:58Z https://eprints.nottingham.ac.uk/45240/ Effect of delivery method on the efficacy of Salmonella vaccination in chickens Atterbury, Robert J. Morris, V. Harrison, D. Tucker, V. Allen, V.M. Davies, R.H. Carrique-Mas, J.J. To investigate whether the efficacy of live vaccines is influenced by the mode of vaccine delivery, a widely-used UK live commercial Salmonella Enteritidis vaccine was delivered to pullet chicks either by spray, in drinking water, or in combination with a bivalent vaccine containing inactivated Salmonella Enteritidis and Salmonella Typhimurium. The birds were subsequently challenged with 102 or 108 colony-forming units (cfu) of Salmonella Enteritidis through drinking water at either six or 20 weeks of age. Ten days after the challenge, the birds were euthanased and their caecal contents cultured for Salmonella. All of the vaccinated groups contained fewer Salmonella Enteritidis-positive birds than the unvaccinated groups. The ‘spray-vaccinated’ group contained significantly fewer Salmonella Enteritidis-positive birds than the ‘water-vaccinated’ group after challenge with 108 cfu at 20 weeks. However, there was little or no difference at the other challenge time points between the groups that received vaccine through different modes of delivery. BMJ Publishing Group 2010-07 Article PeerReviewed Atterbury, Robert J., Morris, V., Harrison, D., Tucker, V., Allen, V.M., Davies, R.H. and Carrique-Mas, J.J. (2010) Effect of delivery method on the efficacy of Salmonella vaccination in chickens. Veterinary Record, 167 (5). pp. 161-164. ISSN 2042-7670 http://veterinaryrecord.bmj.com/content/167/5/161# doi:10.1136/vr.b4884 doi:10.1136/vr.b4884
spellingShingle Atterbury, Robert J.
Morris, V.
Harrison, D.
Tucker, V.
Allen, V.M.
Davies, R.H.
Carrique-Mas, J.J.
Effect of delivery method on the efficacy of Salmonella vaccination in chickens
title Effect of delivery method on the efficacy of Salmonella vaccination in chickens
title_full Effect of delivery method on the efficacy of Salmonella vaccination in chickens
title_fullStr Effect of delivery method on the efficacy of Salmonella vaccination in chickens
title_full_unstemmed Effect of delivery method on the efficacy of Salmonella vaccination in chickens
title_short Effect of delivery method on the efficacy of Salmonella vaccination in chickens
title_sort effect of delivery method on the efficacy of salmonella vaccination in chickens
url https://eprints.nottingham.ac.uk/45240/
https://eprints.nottingham.ac.uk/45240/
https://eprints.nottingham.ac.uk/45240/