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.