Development and application of a NP-cELISA for the detection of nucleoprotein antibodies of equine influenza virus
Equine influenza (EI) is a highly contagious respiratory disease that poses significant economic and health challenges to the global equine industry. Current diagnostic methods, such as hemagglutination inhibition (HI), are accurate but complex and impractical for widespread use, especially in regions like China where commercial kits are unavailable. This study developed a competitive ELISA (cELISA) for detecting EI virus antibodies, offering a simpler, faster, and more cost-effective alternative. The assay demonstrated higher concordance with HI than existing commercial kits and effectively monitored antibody responses in vaccinated horses. Additionally, it enabled the first large-scale serological survey of EI in China, providing critical insights into the virus's prevalence. This advancement supports timely disease detection and control, benefiting veterinary practices and the equine industry worldwide.
Authors
- Wei Guo (ORCID: https://orcid.org/0000-0003-0245-3508)
- Zhe Hu (ORCID: https://orcid.org/0000-0003-2293-0105)
- Xiaoyu Chu (ORCID: https://orcid.org/0000-0002-7096-6076)
- Zhenyu Zhang (ORCID: https://orcid.org/0000-0003-4974-1400)
- Kui Guo (ORCID: https://orcid.org/0000-0001-6274-1857)
- Zenan Zhang (ORCID: https://orcid.org/0000-0001-5796-4159)
- Shuaijie Li (ORCID: https://orcid.org/0000-0002-1172-5168)
- Xiaojun Wang (ORCID: https://orcid.org/0000-0003-4521-4099)
- Ling Xu
- Mingqi Dong
- Wen Liu (ORCID: https://orcid.org/0000-0003-2448-2107)
- Yaoxin Wang (ORCID: https://orcid.org/0009-0007-4638-2613)
- Yan Yang (ORCID: https://orcid.org/0000-0002-3862-2003)
Institutions
- University of Wisconsin–Madison (US)
- Xinjiang Academy of Agricultural Sciences (CN)
- Harbin Electric Corporation (China) (CN)
- Chinese Academy of Agricultural Sciences (CN)
- Harbin Veterinary Research Institute (CN)
Publication Details
- Journal
- Microbiology Spectrum
- Published
- 2025-08-25
- DOI
- https://doi.org/10.1128/spectrum.00939-25
- Primary Topic
- Influenza Virus Research Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Natural Science Foundation of Heilongjiang Province