Africa Centres for Disease Control and Prevention (Africa CDC)
Chinese Center for Disease Control and Prevention
National Institutes of Health - USA
World Health Organisation
European Centre for Disease Prevention and Control: an agency of the European Union
European Commission
European Parliament
National Institute for Health and Care Excellence (NICE):
UK Health Security Agency: Covid-19 guidance material
Public Health Scotland and Health Protection Scotland
The National Rheumatoid Arthritis Society has a dedicated Covid-19 page.