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Sexually transmitted enteric infections in men who have sex with men

Kira L Newman1, Gretchen Snoeyenbos Newman2, Chase A Cannon3

  • 1Department of Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan, USA.

Clinical Microbiology Reviews
|September 17, 2025
PubMed

Insights

Sexually transmitted enteric infections (STEIs) are increasingly recognized among men who have sex with men (MSM). This review highlights urgent pathogens and research needs for better public health responses.

Area of Science:

  • Public Health
  • Infectious Diseases
  • Epidemiology

Background:

  • Sexually transmitted enteric infections (STEIs) have been documented among men who have sex with men (MSM) since the 1960s.
  • Widespread adoption of multiplex molecular diagnostics has increased recognition of STEIs.
  • The public health response to STEIs is challenging due to their placement between sexually transmitted and foodborne disease classifications.

Purpose of the Study:

  • To review the evolving understanding of STEIs.
  • To discuss specific pathogens of urgent importance.
  • To prioritize areas for future research.

Main Methods:

  • Literature review of existing studies on STEIs.
  • Analysis of trends in diagnosis and recognition.
  • Examination of pathogen emergence and resistance patterns.

Main Results:

  • STEIs are an increasing public health concern, particularly among MSM.
  • Emergence of extensively drug-resistant *Shigella* and *Campylobacter* poses a significant threat.
  • The impact of HIV and STI prophylaxis on STEI is currently unclear.

Conclusions:

  • Timely diagnosis, appropriate treatment, and community-level education are crucial for managing STEIs.
  • Further research is needed to understand transmission dynamics and optimize interventions.
  • Addressing STEIs requires a coordinated public health approach bridging traditional disease categories.
Keywords:
CampylobacterGiardiaMSMSTDSTIShigellaamebiasisbisexualdiarrheagastroenteritisgastrointestinalgayhomosexualsexually transmitted infection

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