ArticleVeterinary research2023
A novel live attenuated duck Tembusu virus vaccine targeting N7 methyltransferase protects ducklings against pathogenic strains.
Article in Veterinary research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 1 citations in OpenAlex.
- Quercetin exhibits antiviral activity against duck Tembusu virus in vitro and in vivo.Poultry science · 2026Article
- Review
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Authors and funding
23 authors at 1 institution in 1 country.
Funding
Abstract
Duck Tembusu virus (DTMUV), an emerging pathogenic flavivirus, causes markedly decreased egg production in laying duck and neurological dysfunction and death in ducklings. Vaccination is currently the most effective means for prevention and control of DTMUV. In previous study, we have found that methyltransferase (MTase) defective DTMUV is attenuated and induces a higher innate immunity. However, it is not clear whether MTase-deficient DTMUV can be used as a live attenuated vaccine (LAV). In this study, we investigated the immunogenicity and immunoprotection of N7-MTase defective recombinant DTMUV K61A, K182A and E218A in ducklings. These three mutants were highly attenuated in both virulence and proliferation in ducklings but still immunogenic. Furthermore, a single-dose immunization with K61A, K182A or E218A could induce robust T cell responses and humoral immune responses, which could protect ducks from the challenge of a lethal-dose of DTMUV-CQW1. Together, this study provides an ideal strategy to design LAVs for DTMUV by targeting N7-MTase without changing the antigen composition. This attenuated strategy targeting N7-MTase may apply to other flaviviruses.
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Registered trials
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