1. German Centre for Infection Research (DZIF), Germany
2. Institute of Virology, University of Bonn Medical Centre, Bonn, Germany
3. Virology Laboratory, Dr Soliman Fakeeh Hospital, Jeddah
4. TibMolbiol, Berlin, Germany
5. Department of Virology and Virosciences, Erasmus Medical Centre, Rotterdam, The Netherlands
6. Health Protection Agency (HPA), London, United Kingdom