Worldwide occurrence of Yersinia spp. within fattening pigs and wild boars

Yersiniosis is one of the most frequently reported zoonotic diseases in humans, primarily manifested with gastrointestinal symptoms. Its etiological agents are bacteria of the Yersinia genus, predominantly Y. enterocolitica. The reservoirs of these bacteria include animals such as pigs and wild boars, with the most common source of infection being the consumption of contaminated meat from these animals. This article presents a literature review covering the years 2011-2025, highlighting the ongoing issue of the presence of these bacteria in samples from pigs, wild boars, and their meat. Monitoring the presence of these pathogens in various hosts is crucial for understanding their carriage, transmission dynamics between animal hosts, and potential transmission to humans.