1 French Covid-19 Scientific Council, Paris, France. Electronic address: [email protected].
2 Royal College of Physicians of Ireland, Dublin, Ireland; Infectious Diseases Department Cork, University Hospital and University College Cork, Cork, Ireland.
3 Statens Serum Institut, Copenhagen, Denmark.
4 Centro de Coordinación de Alertas y Emergencias Sanitarias, Madrid, Spain.
5 Department of Biosystems Science and Engineering of the Swiss Federal Institute of Technology, ETH Zürich, Zürich, Switzerland; Swiss Science Advisory Panel COVID-19, Bern, Switzerland.
6 Center for Infectious Disease Control, National Institute for Public Health and Environment (RIVM), Bilthoven, Netherlands.
7 Sciensano, Brussels, Belgium.
8 Università Cattolica del Sacro Cuore, Rome, Italy.
9 Centre for International Health Protection, Robert Koch Institute, Berlin, Germany.