1. S. Ricci and G. Stalder ✉ (gabrielle.stalder@vetmeduni.ac.at), Res. Inst. of Wildlife Ecology, Dept of Interdisciplinary Life Sciences, Univ. of Veterinary Medicine, Austria, Savoyenstraße 1, AU-1160 Vienna, Austria. SR also at: Univ. of Camerino, Ca
2. R. Sandfort, Inst. of Wildlife Biology and Game Management, Univ. of Natural Resources and Life Sciences Vienna, Vienna, Austria.
3. B. Pinior, Inst. for Veterinary Public Health, Dept for Farm Animals and Veterinary Public Health, Univ. of Veterinary Medicine, Vienna, Austria.
4. E. Mann and S. U. Wetzels, Inst. of Milk Hygiene, Milk Technology and Food Science, Dept for Farm Animal and Public Health in Veterinary Medicine, Univ. of Veterinary Medicine, Vienna, Austria.