Recombinant Newcastle Disease Virus (NDV) Expressing Sigma C Protein of Avian Reovirus (ARV) Protects against Both ARV and NDV in Chickens
Links to Fileshttps://www.mdpi.com/2076-0817/8/3/145
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Type of Work21 pages
Citation of Original PublicationSaikia, D.P.; Yadav, K.; Pathak, D.C.; Ramamurthy, N.; D’Silva, A.L.; Marriappan, A.K.; Ramakrishnan, S.; Vakharia, V.N.; Chellappa, M.M.; Dey, S. Recombinant Newcastle Disease Virus (NDV) Expressing Sigma C Protein of Avian Reovirus (ARV) Protects against Both ARV and NDV in Chickens. Pathogens 2019, 8, 145.
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Subjectsnewcastle disease virus
avian reovirus-σC protein
bivalent vaccine candidate
humoral and cell mediated immune responses
Newcastle disease (ND) and avian reovirus (ARV) infections are a serious threat to the poultry industry, which causes heavy economic losses. The mesogenic NDV strain R2B is commonly used as a booster vaccine in many Asian countries to control the disease. In this seminal work, a recombinant NDV strain R2B expressing the sigma C (σC) gene of ARV (rNDV-R2B-σC) was generated by reverse genetics, characterized in vitro and tested as a bivalent vaccine candidate in chickens. The recombinant rNDV-R2B-σC virus was attenuated as compared to the parent rNDV-R2B virus as revealed by standard pathogenicity assays. The generated vaccine candidate, rNDV-R2B-σC, could induce both humoral and cell mediated immune responses in birds and gave complete protection against virulent NDV and ARV challenges. Post-challenge virus shedding analysis revealed a drastic reduction in NDV shed, as compared to unvaccinated birds
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