Affiliation: | 1. Centre for Preventive Medicine, Animal Health Trust, Lanwades Park, Kentford, Newmarket, Suffolk CB8 7UU, United Kingdom;2. School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Loughborough, Leicestershire LE12 5RD, United Kingdom;3. Institut für Virologie, Robert von Ostertag-Haus, Zentrum für Infektionsmedizin, Robert von Ostertag-Str. 7-13, 14163 Berlin, Germany |