ArticleArchives of virology2018
Passive immunity to porcine epidemic diarrhea virus following immunization of pregnant gilts with a recombinant orf virus vector expressing the spike protein.
Article in Archives of virology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
22 citing papers in PubMed, 30 citations in OpenAlex.
- Discovery of KC-1: a novel porcine dendritic cell-targeting peptide with potential applications in swine vaccine design.BMC veterinary research · 2026Article
- Overcoming Antigenic Drift in PEDV: Broadly Protective Antigen Design and sIgA-Driven Lactogenic Immunity.Veterinary sciences · 2026Review
- SFV Replicon Vector Harbouring Porcine Epidemic Diarrhoea Virus Immunogens Delivered by AttenuatedViruses · 2026Article
- Ferritin-based nanoparticle vaccine protects neonatal piglets against porcine epidemic diarrhea virus challenge following immunization of pregnant sows.Veterinary research · 2025Article
- Advancing ORFV-Based Therapeutics to the Clinical Stage.Reviews in medical virology · 2025Review
- Advances in porcine epidemic diarrhea virus research: genome, epidemiology, vaccines, and detection methods.Discover nano · 2025Review
- Development of an Indirect ELISA Based on the PEDV S Protein and Evaluation of Its Correlation With Neutralizing Antibody and Immune Protection.Transboundary and emerging diseases · 2025Article
- Article
- Research progress of porcine epidemic diarrhea virus S protein.Frontiers in microbiology · 2024Review
- Immunogenicity of chimeric hemagglutinins delivered by an orf virus vector platform against swine influenza virus.Frontiers in immunology · 2024Article
- Swine influenza A virus: challenges and novel vaccine strategies.Frontiers in cellular and infection microbiology · 2024Review
- Article
- The immunogenicity of plant-based COE-GCN4pII protein in pigs against the highly virulent porcine epidemic diarrhea virus strain from genotype 2.Frontiers in veterinary science · 2022Article
- Review
- Protective Efficacy of an Orf Virus-Vector Encoding the Hemagglutinin and the Nucleoprotein of Influenza A Virus in Swine.Frontiers in immunology · 2021Article
- Porcine epidemic diarrhea virus: Molecular mechanisms of attenuation and vaccines.Microbial pathogenesis · 2020Review
- NF-κB as an Important Factor in Optimizing Poxvirus-Based Vaccines against Viral Infections.Pathogens (Basel, Switzerland) · 2020Review
- Efficacy of Porcine Epidemic Diarrhea Vaccines: A Systematic Review and Meta-Analysis.Vaccines · 2020Article
- Intramuscular Immunization with Chemokine-Adjuvanted Inactive Porcine Epidemic Diarrhea Virus Induces Substantial Protection in Pigs.Vaccines · 2020Article
- Host Factors Affecting Generation of Immunity Against Porcine Epidemic Diarrhea Virus in Pregnant and Lactating Swine and Passive Protection of Neonates.Pathogens (Basel, Switzerland) · 2020Review
Corrections and comments
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Authors and funding
11 authors at 3 institutions in 2 countries.
Funding
Abstract
Passive immunity is critical for protection of neonatal piglets against porcine epidemic diarrhea virus (PEDV). Here, we investigated the immunogenicity of an orf virus (ORFV) vector expressing the full-length spike (S) protein of PEDV (ORFV-PEDV-S) in pregnant gilts and its ability to confer passive immunity and protection in piglets. Three doses of ORFV-PEDV-S were given to two groups of PEDV-negative pregnant gilts, with the last dose being administered two weeks prior to farrowing. One of the two groups immunized with the ORFV-PEDV-S recombinant virus was also exposed to live PEDV orally on day 31 post-immunization (pi). Antibody responses were assessed in serum, colostrum and milk of immunized gilts, and passive transfer of antibodies was evaluated in piglet sera. The protective efficacy of ORFV-PEDV-S was evaluated after challenge of the piglets with PEDV. PEDV-specific IgG, IgA and neutralizing antibody (NA) responses were detected in ORFV-PEDV-S-immunized and ORFV-PEDV-S-immunized/PEDV-exposed gilts. PEDV NA, IgG and IgA were detected in the serum of piglets born to immunized gilts, demonstrating the transfer of antibodies through colostrum and milk. Piglets born to immunized gilts showed reduced morbidity and a marked reduction in mortality after PEDV challenge in comparison to control piglets. Piglets born to gilts that received ORFV-PEDV-S and were exposed to live PEDV showed stronger NA responses and lower clinical scores when compared to piglets born to gilts immunized with ORFV-PEDV-S alone. These results demonstrate the potential of ORFV as a vaccine delivery platform capable of eliciting passive immunity against PEDV.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.