Related Experiment Video
Updated: Oct 24, 2025

Author Spotlight: Advancements in Understanding and Combatting Shigella Infections
Published on: February 9, 2024
Shigella sonnei, an emerging multidrug-resistant sexually transmitted pathogen in Franche-Comté, France
Souheil Zayet1, Timothée Klopfenstein1, Alix Pierron1
1Department of Infectious Disease, Nord Franche-Comté Hospital, Trevenans, France.
Abstract:
Shigella sonnei (S. sonnei) is sometimes sexually transmitted. Men, who have sex with men (MSM), may have sexual behaviours different from heterosexual population, and thus may be at risk for S. sonnei infection. We describe three cases of multidrug-resistant S. sonnei in MSM (one HIV-infected patient and two patients receiving pre-exposure prophylaxis against HIV). S. sonnei was isolated from stool specimens and all patients were successfully treated with parenteral third-generation cephalosporins following laboratory confirmation that the isolates were resistant to azithromycin. Two men (patients 2 and 3) were linked epidemiologically. These cases highlight the emergence of this pathogen and its association with some sexual behaviours among MSM in Franche-Comté, France.
Insights
Multidrug-resistant Shigella sonnei infections are emerging among men who have sex with men (MSM). These infections, linked to specific sexual behaviors, require prompt laboratory confirmation and appropriate antibiotic treatment.
Area of Science:
- Infectious Diseases
- Public Health
- Microbiology
Background:
- Shigella sonnei (S. sonnei) can be sexually transmitted, posing a risk to men who have sex with men (MSM) due to distinct sexual behaviors.
- Emerging cases of multidrug-resistant S. sonnei infections have been observed in MSM populations.
Discussion:
- Three cases of multidrug-resistant S. sonnei in MSM are presented, including one HIV-infected individual and two on HIV pre-exposure prophylaxis.
- S. sonnei isolates were resistant to azithromycin but treatable with parenteral third-generation cephalosporins.
- Epidemiological linkage was identified between two of the three cases.
Key Insights:
- Highlights the emergence of multidrug-resistant S. sonnei in MSM.
- Underscores the association between S. sonnei infections and specific sexual behaviors within this demographic.
- Demonstrates successful treatment outcomes with third-generation cephalosporins.
Outlook:
- Further surveillance is needed to monitor the prevalence and transmission patterns of multidrug-resistant S. sonnei among MSM.
- Understanding sexual transmission dynamics is crucial for targeted prevention strategies.
- Continued research into antimicrobial resistance patterns of S. sonnei is essential for effective public health interventions.
Related Concept Videos
Sexually Transmitted Infections
Stringent Response in E. coli
Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care
Urinary Tract Infection II: Pathophysiology
Development of Antibiotic Resistance

