Abstract

Improved knowledge of factors that promote outbreaks of enteric pathogens among men who have sex with men (MSM) could enable targeted public health interventions. We detected enteric pathogens in 57 of 519 (11%) asymptomatic MSM, and we found that enteric pathogen detection was associated with both oroanal sex (rimming) and group sex.

Highlights

  • Improved knowledge of factors that promote outbreaks of enteric pathogens among men who have sex with men (MSM) could enable targeted public health interventions

  • 363 of 505 MSM (71.9%; 95% confidence interval (CI), 67.8%–75.6%) reported insertive rimming in the last 12 months, 123 of 519 (23.7%; 95% CI, 20.2%–27.6%) reported group sex in the last month, and 68 of 519 (13.1%; 95% CI, 10.5%–16.3%) men reported using party drugs in the last month

  • Rectal swabs from 57 of 519 (11.0%; 95% CI, 8.4%–14.0%) men tested positive for any enteric pathogen (Supplementary Table 2)

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Summary

Introduction

Improved knowledge of factors that promote outbreaks of enteric pathogens among men who have sex with men (MSM) could enable targeted public health interventions. Sexual transmission is a well recognized mode of transmission, mainly amongst men who have sex with men (MSM), and, over the past decade, there have been increasing reports of outbreaks of enteric pathogens among MSM, including Shigella spp, Shiga-toxin-producing Escherichia coli (STEC), and hepatitis A virus [1,2,3,4,5,6,7]. Sexually transmitted shigellosis has emerged as a major public health concern, mainly due to high rates of resistance to clinically relevant antimicrobials [4, 5, 8]. Given the extent and persistence of Shigella in MSM in our setting, we hypothesised that asymptomatic carriage of enteric

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