ArticleVeterinary microbiology2019
Attenuation and characterization of porcine enteric alphacoronavirus strain GDS04 via serial cell passage.
Article in Veterinary microbiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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Who cites it
8 citing papers in PubMed, 13 citations in OpenAlex.
- Natural Products as Potential Resource Library for Control of Major Swine Enteric Viruses.Transboundary and emerging diseases · 2026Review
- SADS-CoV nsp5 Inhibits Interferon Production by Targeting Kinase IKKε.Microorganisms · 2025Article
- Deciphering the Genetic Variation: A Comparative Analysis of Parental and Attenuated Strains of the QXL87 Vaccine for Infectious Bronchitis.Animals : an open access journal from MDPI · 2024Article
- Swine acute diarrhea syndrome coronavirus Nsp1 suppresses IFN-λ1 production by degrading IRF1 via ubiquitin-proteasome pathway.Veterinary research · 2024Article
- Research Advances on Swine Acute Diarrhea Syndrome Coronavirus.Animals : an open access journal from MDPI · 2024Review
- Prevention and Control of Swine Enteric Coronaviruses in China: A Review of Vaccine Development and Application.Vaccines · 2023Review
- Article
- Identification and epitope mapping of swine acute diarrhea syndrome coronavirus accessory protein NS7a via monoclonal antibodies.Virus research · 2022Article
Corrections and comments
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Porcine enteric alphacoronavirus (PEAV) is a newly identified swine enteropathogenic coronavirus that causes watery diarrhea in newborn piglets. In this study, an original, highly virulent PEAV strain GDS04 was serially passaged in Vero cells. The virus titers and sizes of syncytia increased gradually with the cell passages. Newborn piglets were orally inoculated with PEAV P15, P67 and P100. Compared with P15 and P67, P100 resulted in only mild clinical signs and intestinal lesions in piglets. The virus shedding in feces and viral antigens in intestinal tract were markedly reduced in P100-inoculated piglets. Importantly, all P100-inoculated newborn piglets survived, indicating that P100 was an attenuated variant. Sequence analysis revealed that the virulent strain GDS04 had four, one, six and eleven amino acid differences in membrane, nucleocapsid, spike and ORF1ab proteins, respectively, from P100. Furthermore, more differences in the predicted three-dimensional structure of S protein between GDS04 and P100 were observed, indicating that these differences might be associated with the pathogenicity of PEAV. Collectively, our research successfully prepared a PEAV attenuated variant which might serve as a live attenuated vaccine candidate against PEAV infection.
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Registered trials
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