Sheep shed Y. enterocolitica bioserotypes 2/O:9 and 5/O:3 in the feces. ail-positive Y. enterocolitica bioserotype 1A strains found in sheep. Isolation and identification of bioserotype 5/O:3 is very challenging. Genetic diversity of bioserotypes 2/O:9 and 5/O:3 was very limited. Susceptibility to antimicrobial agents was very high.