Thursday, April 2, 2026

Oral-Anal contact by male sex with men (MSM) causing up to 30 different STI infections

  Enteric Infections in Men Who Have Sex With Men Free Candice J McNeil , Robert D Kirkcaldy , Kimberly Workowski Clinical Infectious Diseases, Volume 74, Issue Supplement_2, 15 April 2022

 Enteric Infections in Men Who Have Sex With Men

Clinical Infectious Diseases, Volume 74, Issue Supplement_2, 15 April 2022
 
 Gaudreau et al [11, 13] reported outbreaks of C. jejuni infections in Quebec, Canada, among MSM who did not share common food sources. Outbreaks of C. coli were also reported in MSM during an overlapping timeframe where recent sexual exposure was reported in addition to reports of condomless sex and visits to bathhouses or sex clubs in some of the men [12, 14]. Similarly, Marchand-Senécal et al [21] noted that 12 of 13 men identified in a C. fetus cluster investigation reported sexual contact with men, 
 7 of the 13 were documented with 30 STIs other than HIV within 3 years of their Campylobacter infection.
  same-sex partnerships among men were associated with EH infection (positive serology or antigen and PCR). Additionally, they used genomic analysis to find that clusters of EH occurred in geographically unrelated patients, suggesting that person-to-person transmission may be occurring. Quinn et al reviewed the etiology of anorectal infections in MSM and reported a case of EH anorectal infection with stool wet mount positive for EH trophozoites and stool studies positive for EH and giardia cysts in MSM

 Because oral–anal contact during sex may be common among sexually active MSM, this population may be disproportionately affected;

 Estimated prevalence and associations of sexually transmissible bacterial enteric pathogens in
asymptomatic men who have sex with men:

 bacterial enteric pathogen detection was more frequent in MSM 

 Pathogens with a low inoculum dose are likely to be more transmissible from person to person through sexual contact in particular when the risk of faecal contamination increase such as with oral-anal sex, 
............

  We have estimated the pooled prevalence of Shigella spp, Campylo-bacter spp, diarrhoeagenic E. coli and Salmonella spp in asymptomatic MSM attending sexual health clinics and highlight some
important associations.

 https://www.researchgate.net/profile/Daniel-Richardson-10/publication/378969235_Factors_associated_with_Entamoeba_histolytica_proctocolitis_in_men_who_have_sex_with_men_a_systematic_review/links/65f40b8f32321b2cff7b4707/Factors-associated-with-Entamoeba-histolytica-proctocolitis-in-men-who-have-sex-with-men-a-systematic-review.pdf

 

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