Is Yersinia bercovieri Surpassing Yersinia enterocolitica in Wild Boars ( Sus scrofa )?

Yersiniosis was the fourth reported zoonosis in the European Union in 2018. As well-known, pigs are recognized important reservoirs of Yersinia enterocolitica . The study was focused on Y. enterocolitica detection in mesenteric lymph nodes and faeces of 305 wild boars, but Yersinia bercovieri was more common, being isolated from 108 animals (35.4%). Cold season ( p = 1.17 × 10 –5 ) and young age ( p = 0.004) significantly increased Y. bercovieri detection. Y. enterocolitica 1A belonging to six serotypes (O:4.32–4.33; O:5; O:6.30–6.31; O:7.8–8–8.19; O:10–34; O:12.25–12.26) was isolated from 8.2% (25/305) of the animals. Cold season significantly affected ( p = 0.037) Y. enterocolitica detection .