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Characterization of a novel real-time PCR assay. | LitMetric

Characterization of a novel real-time PCR assay.

J Vet Diagn Invest

Animal Health Diagnostic Center, Cornell University, Ithaca, NY (Tallmadge, Anderson, Mitchell, Forbes, Werner, Gioia, Moroni, Glaser, Thachil, Goodman).

Published: November 2020

AI Article Synopsis

Article Abstract

is recognized as an emerging causative pathogen of canine infectious respiratory disease (CIRD) worldwide. We developed a new open-source real-time PCR (rtPCR) assay for that performs well under standard rtPCR conditions. Primers and probes were designed to target the gene. Reaction efficiencies for the gene assay on 2 platforms were based on amplification of standard curves spanning 8 orders of magnitude: ABI 7500 platform, 94.3-97.9% ( ≥ 0.9935); QuantStudio OpenArray platform, 119.1-122.5% ( = 0.9784). The assay performed very well over a range of template input, from 10 copies to the lower limit of quantification at 4 copies of the genome on the ABI 7500 platform. Diagnostic performance was estimated by comparison with an in-house legacy assay on clinical specimens as well as testing isolates that were characterized previously by intergenic spacer region (ISR) sequencing. Exclusivity was established by testing 12 other species. To substantiate the high specificity of the gene assay, sequence confirmation was performed on ISR PCR amplicons obtained from clinical specimens. One ISR amplicon sequence revealed rather than . The complete protocol of the newly developed assay is provided to facilitate assay harmonization.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7206559PMC
http://dx.doi.org/10.1177/1040638719890858DOI Listing

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