Sexual Contact as Risk Factor for Campylobacter Infection, Denmark

Insights

Men who have sex with men (MSM) face higher risks for Campylobacter and Shigella infections. Sexual contact is a confirmed risk factor for campylobacteriosis, informing updated public health guidelines.

Area of Science:

  • Infectious Diseases
  • Epidemiology
  • Public Health

Background:

  • Campylobacteriosis is a significant global disease with poorly understood transmission dynamics and risk factors.
  • Identifying specific risk factors is crucial for effective public health interventions and disease prevention.

Purpose of the Study:

  • To investigate the transmission dynamics and risk factors associated with Campylobacter infections.
  • To compare infection rates of Campylobacter, Salmonella, and Shigella between men who have sex with men (MSM) and the general population.

Main Methods:

  • A matched case-control study involving 4,269 MSM and 26,215 controls.
  • Analysis of national surveillance data for Campylobacter, Salmonella, and Shigella infections.
  • Calculation of matched odds ratios (mORs) to assess infection risk.

Main Results:

  • MSM showed significantly higher odds of Campylobacter (mOR 14) and Shigella (mOR 74) infections compared to controls.
  • No significant difference in Salmonella infection odds was observed between MSM and controls (mOR 0.2).
  • MSM were less likely to have acquired Campylobacter infection abroad, suggesting domestic transmission routes.

Conclusions:

  • Sexual contact is confirmed as a significant risk factor for campylobacteriosis.
  • Findings offer insights into the unique epidemiology of Campylobacter infections.
  • Results provide a foundation for revising infection risk guidelines for the general population.

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