1. Bundeswehr Institute of Microbiology, Munich, GermanyBernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
2. National Institute for Communicable Diseases, Sandringham, South Africa
3. Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany
4. Health Protection Agency, Porton Down, Salisbury, United Kingdom
5. Institute Pasteur, Lyon, France
6. Aristotle University of Thessaloniki, Thessaloniki, Greece