Yersinia transmission (example route)

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Yersinia enterocolitica is commonly spread by ingesting contaminated food, with pork products being a well-known source. Undercooked or raw pork allows the bacteria to survive and cause gastroenteritis after ingestion, so eating raw pork is a classic transmission route. The other options don’t fit this organism: inhaling contaminated air isn’t a typical transmission path for Yersinia, boiling water would kill the bacteria so it wouldn’t transmit (and is a control step), and direct sun exposure isn’t a mechanism for contracting this infection. To prevent infection, cook pork thoroughly to a safe internal temperature and practice good kitchen hygiene to avoid cross-contamination.