Affiliation: | a Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Institute of Epidemiology, Seestrasse 55, 16868 Wusterhausen, Germany b VetMed Labor GmbH, Division of IDEXX Laboratories, 71636 Ludwigsburg, Germany c Veterinary Laboratory Freiburg, Wendlinger Str. 34, 79111 Freiburg i.Br., Germany d Institute for Medical Microbiology, Georg-August-University, Kreuzbergring 57, 37075 Göttingen, Germany |