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. 2022 May 5;2(3):100081. doi: 10.1016/j.jcvp.2022.100081

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© 2022 Published by Elsevier Ltd.

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 2 — Images of SARS CoV-2 positive and negative samples with multi-colour filter (UV light) in a gel documentation system (Applied Bio system). Positive sample showed a yellow colour (Tubes A, B & C) whereas the negative samples did not show yellow colour (Tubes D, E & F).