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. 2021 Oct 20;196:113689. doi: 10.1016/j.bios.2021.113689

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© 2021 Elsevier B.V. All rights reserved.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Fig. 1 — The overall procedure of the COVID-19 diagnosis by NESBA. (a) The workflow of the COVID-19 diagnosis. (b) The SARS-CoV-2 genome map (GenBank accession number: MN908947) and target regions of the NEBSA. (c) Schematic illustration of the NESBA for target RNA detection. The arrow indicates the 3′ end of the nucleic acid strand.