Increased severity of two concurrent Campylobacter jejuni clones causing large outbreaks, Denmark, July to October 2025
In July-October 2025, two concurrent <i>Campylobacter jejuni</i> outbreaks (clones ST49#3 and ST52#4) with 112 notified cases were detected through Denmark's whole genome sequencing surveillance programme. The outbreaks were clinically severe: 45 (40%) infected individuals were hospitalised and 16 (14%) had bacteraemia. We estimated 900 laboratory-confirmed outbreak cases. Both outbreaks originated from Danish-produced chicken meat. These outbreaks reveal the vulnerabilities in the current prevention and control framework given by the regulatory tolerance for <i>Campylobacter</i> in fresh poultry meat.
Authors
- Guido Benedetti (ORCID: https://orcid.org/0000-0002-0788-8562)
- Gitte Sørensen (ORCID: https://orcid.org/0000-0002-6217-5776)
- Steen Ethelberg (ORCID: https://orcid.org/0000-0002-9709-356X)
- Susanne Schjørring (ORCID: https://orcid.org/0000-0001-5575-7252)
- Katrine Joensen (ORCID: https://orcid.org/0000-0002-0350-105X)
- Antônio Canabarro (ORCID: https://orcid.org/0000-0002-3970-9047)
- Emily Dibba White
- Tine Graakjær Larsen (ORCID: https://orcid.org/0000-0002-8804-9292)
- Luise Müller (ORCID: https://orcid.org/0000-0001-8833-8062)
Institutions
- Statens Serum Institut (DK)
- University of Copenhagen (DK)
- European Centre for Disease Prevention and Control (SE)
Publication Details
- Journal
- Eurosurveillance
- Published
- 2025-11-27
- DOI
- https://doi.org/10.2807/1560-7917.es.2025.30.47.2500856
- Primary Topic
- Salmonella and Campylobacter epidemiology
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Statens Serum Institut
- Fødevarestyrelsens