Detection of a novel Shamonda Orthobunyavirus in dairy cattle, France, June 2026.

Authors

Mikail Kelleci, Maxime Fusade-Boyer, Delphine Chrétien, Elodie Durand, Mathias Mircovich, Aurélie Sécula, Benjamin Linard, Nicolas Herman, François Schelcher, Guillaume Croville, Stephan Zientara, Pierre Bessière, Jean-Luc Guérin

Published in

Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin. Volume 31. Issue 33.

Abstract

In June 2026, acute fever, diarrhoea, lethargy and marked reduction of milk yield were reported in dairy cattle in eastern France. Unbiased Nanopore metagenomics on pooled plasma from affected cows detected Simbu serogroup Orthobunyavirus, provisionally named European Shamonda Virus, and recovered complete genomes. Segments L and M clustered with Nigerian Shamonda virus, whereas S showed a distinct clustering pattern, suggesting high mutation rate or reassortment. Similar findings in neighbouring countries indicate cross-border emergence requiring coordinated surveillance.

PMID:
42626794
Bibliographic data and abstract were imported from PubMed on 21 Aug 2026.

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