Third Streptococcus pneumoniae disease outbreak involving serotype 4–ST801 in a shipyard, Finland, May to June 2025
Finland experienced three invasive pneumococcal disease (IPD) outbreaks among shipyard workers at the same shipyard, in 2019, 2023 and 2025. During the latest outbreak (30 April-6 June 2025), 13 cases were reported, with six confirmed. All five isolates from blood culture-positive cases were serotype 4 - sequence type 801. These were nearly indistinguishable from three isolates from the 2019 outbreak, nine Finnish IPD surveillance isolates and isolates of a 2019 Norwegian shipyard outbreak. We found an association with welding.
Authors
- Jakub Czarnecki (ORCID: https://orcid.org/0000-0003-4372-5143)
- Ana Cristina Gonzalez-Perez (ORCID: https://orcid.org/0000-0002-8674-1525)
- Harri Marttila
- Heikki Frilander
- Maria-Francesca Manca (ORCID: https://orcid.org/0000-0002-5963-6922)
- Lotta Siira (ORCID: https://orcid.org/0000-0002-0330-7396)
- Jaakko Silvola (ORCID: https://orcid.org/0000-0002-0814-651X)
- J Neto (ORCID: https://orcid.org/0000-0003-3549-6686)
- Irmeli Lindström (ORCID: https://orcid.org/0000-0002-6399-8846)
- Leif Lakoma
- Mari Kanerva (ORCID: https://orcid.org/0000-0002-1993-2532)
- Heikki Kaukavuori
- Mikhail Fomichev
- Riitta Ratia
Institutions
- Finnish Institute of Occupational Health (FI)
- Turku University Hospital (FI)
- Finnish Institute for Health and Welfare (FI)
- Varsinais-Suomen Sairaanhoitopiiri (FI)
- Meyer Turku (Finland) (FI)
- European Centre for Disease Prevention and Control (SE)
Publication Details
- Journal
- Eurosurveillance
- Published
- 2025-10-16
- DOI
- https://doi.org/10.2807/1560-7917.es.2025.30.41.2500758
- Citations
- 1
- Primary Topic
- Pneumonia and Respiratory Infections
- Type
- article
- Field-Weighted Citation Impact
- 1.35