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A One Health Insight into Noncholeric Vibrio spp. Infections in a French Atlantic Coastal Region
Natacha Eyraud1, Fatima Mzali2, Victor Hemar1
1Infectious and Tropical Diseases Department, Bordeaux University Hospital, Bordeaux, France.
Open Forum Infectious Diseases
|June 26, 2025
Summary
Non-choleric Vibrio (NCV) infections are rising in France, with underreported cases and increasing gastroenteritis. Antibiotic resistance is a concern, particularly in environmental strains.
Area of Science:
- Microbiology
- Infectious Diseases
- Epidemiology
Background:
- Non-choleric Vibrio (NCV) species are emerging pathogens with increasing incidence linked to global warming.
- NCV infections present significant morbidity and mortality rates.
- Data on NCV infections remain limited, particularly in regions like France.
Purpose of the Study:
- To investigate the epidemiology of NCV infections in hospital, community, and environmental settings.
- To compare clinical NCV cases with environmental Vibrio strains along the French Atlantic coast.
- To assess the prevalence and characteristics of NCV infections in the Nouvelle-Aquitaine region.
Main Methods:
- A retrospective multicenter study was conducted from 2017 to 2020.
- Data were collected from 10 hospitals and 3 community laboratories.
- Clinical NCV data were compared with environmental Vibrio strains from the same region.
Main Results:
- 223 NCV cases were documented, exceeding national reports for the period and region.
- NCV-associated gastroenteritis increased from 0.13% in 2017 to 0.39% in 2019.
- Immunocompromised individuals and cancer patients were most at-risk; treatments often deviated from recommendations, and tetracycline susceptibility was unassessed. Antibiotic resistance was higher in environmental strains, especially to aminoglycosides.
Conclusions:
- NCV infection incidence is rising in the French Atlantic coastal region.
- High rates of antibiotic resistance in environmental NCV strains are a significant concern.
- NCV infections are likely underestimated in France.
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