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  • Title: High-quality RNA improves sensitivity of SARS-CoV-2 detection by colorimetric RT-LAMP.
    Author: Puigmulé M, Coll M, Pérez-Serra A, López L, Picó F, Neto N, Corona M, Pinsach-Abuin ML, Ferrer-Costa C, Buxó M, Queralt FX, Brugada R.
    Journal: Exp Biol Med (Maywood); 2022 Feb; 247(3):276-281. PubMed ID: 34903068.
    Abstract:
    The global SARS-CoV-2 pandemic requires a rapid, reliable, and user-friendly diagnostic test to help control the spread of the virus. Reverse transcription and quantitative PCR (RT-qPCR) is currently the gold standard method for SARS-CoV-2 detection. Here, we develop a protocol based on reverse transcription loop-mediated isothermal amplification (RT-LAMP) and demonstrate increased sensitivity of this technique using fresh RNA extracts compared to RNA samples subjected to freezing/thawing cycles. We further compare RT-LAMP to RT-qPCR and demonstrate that the RT-LAMP approach has high sensitivity in fresh RNA extracts and can detect positive samples with Ct values between 8 and 35.
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