Peer-reviewed veterinary case report
First detection and autochthonous transmission of monkeypox virus clade Ib in the Netherlands, October to November, 2025.
- Journal:
- Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin
- Year:
- 2026
- Authors:
- Elsinga, Jelte et al.
- Affiliation:
- Amsterdam Institute for Immunology and Infectious Diseases (AII) · Netherlands
Abstract
In October-November 2025, eight autochthonous cases of monkeypox (MPXV) clade Ib virus infection were reported in the Netherlands. All cases were men who have sex with men aged 25-65; none required hospital admission or antiviral treatment. Phylogenetic analysis combined with contact tracing suggest multiple introductions or cryptic circulation with onwards transmission within the community. Highly related international sequences were identified dating back to August 2025, indicating sustained global community transmission of clade Ib outside the African continent.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/41572902/