174.4 📌 章末速蚘

  • Y. enterocolitica + pseudotuberculosis — cold-tolerant 4°C, bipolar staining
  • Source: pork (chitterlings classic), Y. pseudoTB rodents/vegetable
  • Enteritis (兒童) + “pseudoappendicitis” (RLQ, mesenteric adenitis)
  • Iron overload + Yersinia sepsis (hemochromatosis, β-thal, deferoxamine!)
  • Transfusion-associated bacteremia (RBC unit, cold storage)
  • Reactive arthritis HLA-B27 + erythema nodosum (post-infection)
  • Treatment: healthy enteritis NO abx; severe → ceftriaxone or doxy + gent
  • Iron overload: stop deferoxamine; use deferiprone / deferasirox