[1] Univ Erlangen Nurnberg, Med Clin 1, D-91054 Erlangen, Germany
[2] Univ Giessen, Fac Vet Med, Inst Vet Food Sci, D-35392 Giessen, Germany
[3] IVD GmbH, D-30453 Hannover, Germany
[4] Univ Vet Med Hannover, Dept Infect Dis, Inst Microbiol, D-30173 Hannover, Germany
[5] Hannover Med Sch, Dept Microbiol, D-30625 Hannover, Germany
[6] Friedrich Loeffler Inst, Fed Res Inst Anim Hlth, Inst Mol Pathogenesis, D-07743 Jena, Germany
[7] Univ Giessen, Dept Gastroenterol, D-35392 Giessen, Germany
[8] Helmholtz Ctr Infect Res, D-38124 Braunschweig, Germany