Yersinia enterocolitica septicaemia from transfusion of red cell concentrate stored for 16 days

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B L Jones1, M H Saw, M F Hanson

  • 1Department of Medical Microbiology, Western General Hospital, Edinburgh.

Insights

Two patients died from Yersinia enterocolitica infection transmitted through blood transfusions. Early blood outdating may not prevent these fatalities, suggesting alternative safety measures are needed.

Area of Science:

  • Medicine
  • Infectious Diseases
  • Hematology

Background:

  • Blood transfusions are critical medical procedures.
  • Yersinia enterocolitica is a bacterium that can cause gastrointestinal illness.
  • Transfusion-transmitted infections pose a risk to patient safety.

Observation:

  • Two fatal cases of Yersinia enterocolitica infection occurred in Scotland within four months.
  • Both infections were linked to transfusions of red blood cell concentrate.
  • The infected blood units were stored for 16 and 29 days post-donation.

Findings:

  • Yersinia enterocolitica can be transmitted via blood transfusion, leading to severe outcomes.
  • Donors may be asymptomatic carriers of the pathogen.
  • Current storage duration limits may not be sufficient to prevent transmission.

Implications:

  • Early outdating of blood products (e.g., after three weeks) is unlikely to eliminate Yersinia enterocolitica transmission risks.
  • Alternative strategies for preventing transfusion-transmitted Yersinia enterocolitica infections are necessary.
  • Enhanced screening or pathogen reduction technologies should be explored to improve blood safety.

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