ArticleVirus research2023
Knob domain of Fiber 2 protein provides full protection against fowl adenovirus serotype 4.
Article in Virus research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 11 citations in OpenAlex.
- Maternal Antibody Transfer of a Fiber-Based Subunit Vaccine Confers Complete Protection Against Fowl Adenovirus Serotype 11 in Neonatal Chickens.Veterinary sciences · 2026Article
- Fowl adenovirus infections: A comprehensive review of prevalence, pathogenesis, diagnosis, control, and economic impact.Poultry science · 2026Review
- A Novel Chimeric Fiber-C4/D11 Subunit Vaccine Induces Cross-Neutralizing Antibodies and Provides Better Protection Against Fowl Adenovirus (FAdV) Type 4 and Type 11 Than the Fiber-D11/C4 Subunit Vaccine.Veterinary sciences · 2025Article
- Advances and Prospects of Fowl Adenoviruses Vaccine Technologies in the Past Decade.International journal of molecular sciences · 2025Review
- The Development of a Novel Fiber-2 Subunit Vaccine against Fowl Adenovirus Serotype 4 Formulated with Oil Adjuvants.Vaccines · 2024Article
- Virus-like particles in poultry disease: an approach to effective and safe vaccination.Frontiers in veterinary science · 2024Review
- Biological features of fowl adenovirus serotype-4.Frontiers in cellular and infection microbiology · 2024Review
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Highly pathogenic fowl adenovirus serotype 4 (FAdV-4) is an acute infectious disease with severe economic impact, causing chicken hepatitis hydropericardium syndrome (HHS) and high mortality. In the present study, we evaluated the immunogenicity of the recombinant Fiber2-knob protein (F2-Knob) as an FAdV-4 candidate subunit vaccine in 14-day-old SPF chickens. The knob domain is the functional region of the viral surface protein Fiber2. The protein was expressed in Escherichia coli and was administered a single immunization with different vaccine doses. The protective efficacy was evaluated by mortality, clinical symptoms, virus shedding and histopathological examinations after challenged with the FAdV-4. The results showed that the level of ELISA antibodies of the chickens immunized with Fiber2-knob protein was significantly higher than that of the chickens immunized with an inactivated vaccine against FAdV-4. The antibody value of the immunized Fiber2-knob protein was positively correlated with the increase in immunization dose. The challenge experiment showed that the F2-Knob protein provided full protection against virulent FAdV-4 challenge and significantly reduced viral shedding. These results suggest that F2-Knob protein could be a novel vaccine candidate provide insights to control FAdV-4.
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