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Updated: May 18, 2026

Detecting SARS-CoV-2 Virus by Reverse Transcription-Loop-Mediated Isothermal Amplification
Published on: September 8, 2023
Detection of a novel human coronavirus by real-time reverse-transcription polymerase chain reaction
V M Corman1, I Eckerle, T Bleicker
1Institute of Virology, University of Bonn Medical Centre, Bonn, Germany.
Abstract:
We present two real-time reverse-transcription polymerase chain reaction assays for a novel human coronavirus (CoV), targeting regions upstream of the E gene (upE) or within open reading frame (ORF)1b, respectively. Sensitivity for upE is 3.4 copies per reaction (95% confidence interval (CI): 2.5–6.9 copies) or 291 copies/mL of sample. No cross-reactivity was observed with coronaviruses OC43, NL63, 229E, SARS-CoV, nor with 92 clinical specimens containing common human respiratory viruses. We recommend using upE for screening and ORF1b for confirmation.
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