Yersinia

Exam Cram

• Yersinia is a gram -ve rod causing gastroenteritis

• Associations: under cooked pork

• Presentation: travel history + mild diarrhoea, fever, RIF tenderness

• Investigations: stool culture, CTAP; lymph node cluster at appendix (mesenteric adenitis)

• Management: aminoglycosides

Yersinia enterocolitica- pseudo appendicitis, reactive arthritis, erythema nodosum, 

Management: aminoglycosides, 

Reactive arthritis- nsaids

Resources and References

Written in 2025