ArticleVeterinary research2025
Genetic characterization and pathogenicity analysis of three porcine epidemic diarrhea virus strains isolated from North China.
Article in Veterinary research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Article
- Metformin hydrochloride regulates glycolysis and inhibits PEDV replication by inhibition of PI3K-AKT signaling pathway.Journal of virology · 2026Article
- A Recombinant Porcine Epidemic Diarrhea Virus with Multiple S2 Subunit Mutations from China: Isolation, Genetic Characterization, and Pathogenicity Analysis.Microorganisms · 2026Article
- Genetic Diversity, Recombination, and Pathogenicity of Porcine Epidemic Diarrhea Virus Strains Circulating in China During 2023-2024.Transboundary and emerging diseases · 2026Article
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6 authors.
Funding
Abstract
Porcine epidemic diarrhea (PED) is a highly contagious intestinal disease owing to porcine epidemic diarrhea virus (PEDV) infection. It is extremely detrimental to newborn piglets and has caused huge economic losses to the global pig industry. In this study, three PEDV strains of G2a PEDV-WF/2023, G2b PEDV-SX/2024 and PEDV-HS/2024 were successfully isolated from small intestine tissue samples with the analysis of their molecular structure characteristics, genetic characteristics and pathogenicity. Notably, these three PEDV strains had multiple unique aa mutations and extensive N-glycosylation in the D0 region, S1-NTD, COE epitope and SS6, respectively. Therefore, their structures were different compared to CV777 and PT-P5 strains. Furthermore, all the three PEDV strains caused severe clinical symptoms in 1-day-old piglets after infection. Among them, G2a PEDV-WF/2023 was the most detrimental to piglets, with highly levels of viral RNA in vivo. In contrast, PEDV-HS/2024 showed relatively weak pathogenicity to piglets, but it also caused the death of piglets. It might be attributed to the occurrence of individual mutations consistent with the amino acid sequence of G1b subtype in PEDV-HS/2024 strain. Findings in this study allow us to confirm that the G2a PEDV-WF/2023 strain is currently one of the most harmful epidemic strains to piglets. This study may benefit our understanding of the molecular structure characteristics, evolution trend and transmission dynamics of the epidemic strains in China. Moreover, it may provide potential reference for formulating more targeted PEDV vaccines, preventing and controlling this infection, and further curbing the cross-species spread of PEDV.
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