Abstract
A method for separation of spring viraemia of carp virus (SVCV) from large-volume samples using immunomagnetic beads (IMBs) coated with a polyclonal antibody against SVCV was developed. The optimum amount of IMBs was 2 mg in 100 mL. After IMB treatment, the detection limit of SVCV in reverse transcription quantitative PCR (RT-qPCR) was 103 times the 50% tissue culture infectious dose per mL in 100-mL samples. The concentration of viral RNA extracted from SVCV that had been separated using IMBs was 5.18 × 103-fold higher than that of the unseparated SVCV. When fish samples were tested, the concordance rates of the IMBs/RT-qPCR and RT-qPCR were 100% and 67.5%, respectively.
Data availability
The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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Funding
This study was supported by the Public Welfare Project of Ningbo in China (2022S169) and the Scientific Research Foundation of the Chinese Academy of Inspection and Quarantine (CAIQ; 2022JK43).
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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by JH, ZM, GL, SL, WN, GM, XS, WJ, and WS. The first draft of the manuscript was written by JH, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Hongli, J., Min, Z., Longying, G. et al. Separation of spring viraemia of carp virus from large-volume samples using immunomagnetic beads. Arch Virol 169, 8 (2024). https://doi.org/10.1007/s00705-023-05927-y
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DOI: https://doi.org/10.1007/s00705-023-05927-y