| Authors: |
Bergfeldt A; Department of Preclinical Sciences and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, PO box 5003, Ås, 1432, Norway. anbe@vetinst.no., Aae FH; Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, PO box 5003, Ås, 1432, Norway., Myrmel M; Virology Unit, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, PO box 5003, Ås, 1432, Norway., Ranheim B; Norwegian Meat and Poultry Research Centre, Animalia AS, PO box 396-Økern, Oslo, 0513, Norway., Stokstad M; Department of Production Animal Clinical Sciences, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, PO box 5003, Ås, 1432, Norway., Sørby R; Department of Preclinical Sciences and Pathology, Faculty of Veterinary Medicine, Norwegian University of Life Sciences, PO box 5003, Ås, 1432, Norway. |