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. 2023 Jun 26. Online ahead of print. doi: 10.1016/S2666-5247(23)00115-5

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© 2023 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license

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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Proposed placebo-controlled trials to treat or prevent long COVID in children, according to the viral persistence hypothesis

Trials are ongoing in the USA. Patients can be treated if they have developed long COVID, or they have acute SARS-CoV-2 infection and risk factors to develop long COVID.