Abstract
1 Immunology-Vaccinology (B43b), Department of Infectious and Parasitic Diseases, Faculty of Veterinary Medicine, University of Liège, B-4000 Liège, Belgium
2 Proteomic and Protein Biochemistry (Pentagone), University of Mons, B-7000 Mons, Belgium
3 CER Groupe, rue du Carmel 1, B-6900 Marloie, Belgium
4 Department Biocontrole, Research Unit Electron Microscopy, Veterinary and Agrochemical Research Centre, VAR-CODA-CERVA, Groeselenberg 99, B-1180 Ukkel, Belgium