[1] Univ Vet & Pharmaceut Sci Brno, Fac Vet Med, Dept Infect Dis & Microbiol, Palackeho Tr 1946-1, Brno 61242, Czech Republic
[2] Univ Vet & Pharmaceut Sci Brno, Fac Vet Med, Clin Horse Dis, Brno, Czech Republic
[3] Univ Vet & Pharmaceut Sci Brno, Fac Vet Med, CEITEC Cent European Inst Technol, Brno, Czech Republic