1. Laboratory of Clinical and Epidemiological Virology, Department of Microbiology & Immunology, Rega Institute for Medical Research, University of Leuven, Leuven, Belgium.
2. Centre for Health Economics Research & Modelling Infectious Diseases, Centre for the Evaluation of Vaccination, Vaccine & Infectious Disease Institute, Faculty of Medicine, University of Antwerp, Antwerpen, Belgium.
3. Infectious Diseases and Vaccines – Clinical Research, Merck & Co., Inc., North Wales, PA 19454, USA.
4. Department of Public Health & Animal Sciences, University of Bari, Bari, Italy.
5. Veterinary Medical Research Institute, Hungarian Academy of Sciences, Hungária krt. 21, 1143 Budapest, Hungary.
6. Laboratory of Clinical & Epidemiological Virology, Department of Microbiology & Immunology, Rega Institute for Medical Research, University of Leuven, Leuven, Belgium and Laboratory of Virology, ICDDR,B: Mohakhali, 1212 Dhaka, Bangladesh.
7. Laboratory of Clinical & Epidemiological Virology, Department of Microbiology & Immunology, Rega Institute for Medical Research, University of Leuven, Leuven, Belgium.
8. Centre for the Evaluation of Vaccination, Vaccine & Infectious Disease Institute, Faculty of Medicine, University of Antwerp, Antwerpen, Belgium.