id author title date pages extension mime words sentences flesch summary cache txt cord-310657-04pp0o74 Lu, Renfei A Novel Reverse Transcription Loop-Mediated Isothermal Amplification Method for Rapid Detection of SARS-CoV-2 2020-04-18 .txt text/plain 4064 206 51 Using a mismatch-tolerant amplification technique, we developed a simple, rapid, sensitive and visual reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay for SARS-CoV-2 detection based on its N gene. In this study, we applied the mismatch-tolerant technique to develop novel real-time fluorescent and visual RT-LAMP assays for the rapid and sensitive detection of SARS-CoV-2 RNA, and evaluated the novel assays using clinical samples. The novel RT-LAMP assay has a high sensitivity, with a LOD of 118.6 copies per reaction, and shows no cross-reactivity with 17 common human respiratory viruses, including four other human coronaviruses (OC43, 229E, HKU-1 and NL63). In view of a mean viral load of 1.4 × 10 6 copies/mL in nasal swabs of COVID-19 patients, the novel assay is sufficiently sensitive for the detection of SARS-CoV-2 at an early stage of infection using nasal swab specimens. The RT-LAMP assay has a high sensitivity, with a LOD of 118.6 copies of SARS-CoV-2 RNA per 25 µL reaction, and good specificity regarding common respiratory viruses. ./cache/cord-310657-04pp0o74.txt ./txt/cord-310657-04pp0o74.txt