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dc.contributor.authorKarlsson, Ingrid
dc.contributor.authorBorggren, Marie
dc.contributor.authorRosenstierne, Maiken Worsøe
dc.contributor.authorTrebbien, Ramona
dc.contributor.authorWilliams, James A.
dc.contributor.authorVidal, Enric
dc.contributor.authorVergara-Alert, Júlia
dc.contributor.authorSolanes Foz, David
dc.contributor.authorDarji, Ayub
dc.contributor.authorSisteré-Oró, Marta
dc.contributor.authorSegalés, Joaquim
dc.contributor.authorNielsen, Jens
dc.contributor.authorFomsgaard, Anders
dc.contributor.otherProducció Animalca
dc.date.accessioned2019-01-27T19:12:51Z
dc.date.available2019-01-27T19:12:51Z
dc.date.issued2017-11-23
dc.identifier.citationKarlsson, Ingrid, Marie Borggren, Maiken Worsøe Rosenstierne, Ramona Trebbien, James A. Williams, Enric Vidal, and Júlia Vergara-Alert et al. 2018. "Protective Effect Of A Polyvalent Influenza DNA Vaccine In Pigs". Veterinary Immunology And Immunopathology 195: 25-32. Elsevier BV. doi:10.1016/j.vetimm.2017.11.007.ca
dc.identifier.issn0165-2427ca
dc.identifier.urihttp://hdl.handle.net/20.500.12327/174
dc.description.abstractBackground: Influenza A virus in swine herds represents a major problem for the swine industry and poses a constant threat for the emergence of novel pandemic viruses and the development of more effective influenza vaccines for pigs is desired. By optimizing the vector backbone and using a needle-free delivery method, we have recently demonstrated a polyvalent influenza DNA vaccine that induces a broad immune response, including both humoral and cellular immunity. Objectives: To investigate the protection of our polyvalent influenza DNA vaccine approach in a pig challenge study. Methods: By intradermal needle-free delivery to the skin, we immunized pigs with two different doses (500 μg and 800 μg) of an influenza DNA vaccine based on six genes of pandemic origin, including internally expressed matrix and nucleoprotein and externally expressed hemagglutinin and neuraminidase as previously demonstrated. Two weeks following immunization, the pigs were challenged with the 2009 pandemic H1N1 virus. Results: When challenged with 2009 pandemic H1N1, 0/5 vaccinated pigs (800 μg DNA) became infected whereas 5/5 unvaccinated control pigs were infected. The pigs vaccinated with the low dose (500 μg DNA) were only partially protected. The DNA vaccine elicited binding-, hemagglutination inhibitory (HI) − as well as crossreactive neutralizing antibody activity and neuraminidase inhibiting antibodies in the immunized pigs, in a dosedependent manner. Conclusion: The present data, together with the previously demonstrated immunogenicity of our influenza DNA vaccine, indicate that naked DNA vaccine technology provides a strong approach for the development of improved pig vaccines, applying realistic low doses of DNA and a convenient delivery method for mass vaccination.ca
dc.format.extent8ca
dc.language.isoengca
dc.publisherElsevierca
dc.relation.ispartofVeterinary Immunology and Immunopathologyca
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internationalca
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleProtective effect of a polyvalent influenza DNA vaccine in pigsca
dc.typeinfo:eu-repo/semantics/articleca
dc.description.versionreprintca
dc.embargo.termscapca
dc.relation.projectIDEC/FP7/602012/EU/Universal Influenza Vaccines Secured/UNISECca
dc.subject.udc619 - Veterinàriaca
dc.identifier.doihttps://doi.org/10.1016/j.vetimm.2017.11.007ca
dc.contributor.groupSanitat Animalca


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