Shiga Toxin-Producing Escherichia coli Transmission via Fecal Microbiota Transplant

Caroline Zellmer1, Mohamad R A Sater2, Miriam H Huntley2

  • 1OpenBiome, Cambridge, Massachusetts, USA.

Insights

Fecal microbiota transplantation (FMT) can transmit Shiga toxin-producing Escherichia coli (STEC). While no patients died from STEC in this study, improved donor screening is crucial to prevent future transmissions during FMT procedures.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Gastroenterology

Background:

  • Fecal microbiota transplantation (FMT) is a recommended therapy for multiply recurrent Clostridioides difficile infection.
  • The safety of FMT relies heavily on donor screening to prevent pathogen transmission.

Purpose of the Study:

  • To report adverse events in patients receiving FMT from a donor colonized with Shiga toxin-producing Escherichia coli (STEC).
  • To highlight the importance of enhanced screening protocols in FMT.

Main Methods:

  • Retrospective case review of 7 patients who received FMT from a single stool donor.
  • Microbiological analysis of donor stool and patient outcomes.

Main Results:

  • All 7 patients received FMT from a donor colonized with STEC.
  • No patients died from FMT-transmitted STEC.
  • Clinical outcomes related to STEC transmission were monitored.

Conclusions:

  • FMT carries a risk of transmitting STEC from colonized donors.
  • Improved and rigorous donor screening is essential to mitigate the risk of STEC transmission via FMT.
  • Enhanced screening protocols can prevent future adverse events associated with FMT.