Which pathogen is associated with diarrhea from pork consumption?

Yersinia enterocolitica is a pathogen historically linked to pork consumption, particularly undercooked or contaminated pork products. This bacterium can cause Yersiniosis, a gastrointestinal infection characterized by symptoms such as fever, abdominal pain, and diarrhea, which often resembles appendicitis. The infection is typically acquired through ingestion of contaminated food or water, with pork being a commonly implicated source. Yersinia can be present in the intestines of animals, and improper handling or cooking of pork can lead to transmission to humans.

The other pathogens listed also cause gastrointestinal issues, but they are associated with different sources or mechanisms. For instance, Salmonella is often linked to poultry and eggs, Shigella is primarily associated with person-to-person transmission and contaminated water, whereas C. difficile is often related to antibiotic use and healthcare settings, rather than specific food sources like pork. Thus, Yersinia enterocolitica stands out as the correct association with diarrhea stemming from pork consumption.