Wellcome and Nature are among organisations to call for Coronavirus content to be shared openly. A number of publishers have made content available - they are listed by Wellcome at: https://wellcome.ac.uk/press-release/publishers-make-coronavirus-covid-19-content-freely-available-and-reusable and by STM at: www.stm-assoc.org/about-the-industry/coronavirus-2019-ncov. Some of the main publishers and their coronavirus free content are listed below. Many publishers have also committed to make content available through PubMedCentral.
AMBOSS Learning Card
https://www.amboss.com/us/knowledge/COVID-19_%28coronavirus_disease_2019%29
BMJ
https://www.bmj.com/coronavirus
BMJ online CPD: https://new-learning.bmj.com/covid-19
Elsevier
www.elsevier.com/connect/coronavirus-information-center
Emerald
Eurosurveillance
www.eurosurveillance.org/content/2019-ncov
JAMA Network
jamanetwork.com/journals/jama/pages/coronavirus-alert
The Lancet
www.thelancet.com/coronavirus
The New England Journal of Medicine
www.nejm.org/coronavirus
Nursing Standard
https://rcni.com/nursing-standard/covid-19
Oxford University Press
academic.oup.com/journals/pages/coronavirus
The Royal Society
royalsociety.org/journals/#listing
Springer Nature (Springer, Nature, Scientific American, BMC)
www.springernature.com/gp/researchers/campaigns/coronavirus
Taylor and Francis Group
newsroom.taylorandfrancisgroup.com/coronavirus-reading-list
https://www.timeshighereducation.com/policy/coronavirus
Wiley Online Library
novel-coronavirus.onlinelibrary.wiley.com