Heliyon (May 2024)

Establishment of a chip digital PCR detection method for canine circovirus

  • Xiaoxiao Lei,
  • Qiao Lv,
  • Yan Qin,
  • Wei Chen,
  • Yanqing Hu,
  • Chenchen Zhao,
  • Xinyu Zhang,
  • Haixin Huang,
  • Yuying Li,
  • Jingyi Lu,
  • Tian Lan,
  • Wenchao Sun,
  • Min Zheng

Journal volume & issue
Vol. 10, no. 9
p. e30859

Abstract

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Canine circovirus (CanineCV), which is a new mammalian circovirus first reported in the United States in 2012, mainly causes diarrhea and vomiting in dogs. As CanineCV evolves and new subtypes emerge, there is an urgent need for new detection technologies to improve the sensitivity and detection rates of viruses in complex scenarios. A chip digital PCR(cdPCR) assay was established for the detection of CanineCV in this study. The results showed good reproducibility, specificity and a linear relationship; the minimum detection limit of CanineCV by cdPCR was 6.62 copies/μL, which is 10 times more sensitive than quantitative real-time PCR (qPCR). The qPCR-positive detection rate was 1 %, while CanineCV cdPCR (2.1 %) exhibited a greater positive detection rate. Fifteen complete genomes were sequenced and subdivided into CanineCV-1 and CanineCV-3. In conclusion, we developed a rapid, reliable, and specific cdPCR method for screening and monitoring canine CV.

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