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Shamonda-like orthobunyavirus spreads in Western Europe

Updated 9 times since CLSTR started tracking revisions of this situation.

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2026-09-14 03:02 UTC → 2026-09-22 19:12 UTC · added removed

The Shamonda-like orthobunyavirus outbreak continues to impact livestock across Western and Central Europe, with recent developments indicating detections expanding the geographic footprint to the Iberian Peninsula. In Spain, the Ministry of Agriculture, Fisheries and Food (MAPA) has confirmed the presence of multiple genetic variants Shamonda virus type 1 in seven cattle farms across the provinces of Córdoba and spread Toledo. Findings were verified by the Central Veterinary Laboratory (LCV). Affected livestock exhibit high fever, diarrhea, and milk production reductions of 10% to new regions. 20%. While morbidity is high, most adult animals recover and no mortality has been reported. Spanish authorities stated the virus is not a zoonosis and no restrictive measures are currently required. In Germany, the Friedrich-Loeffler-Institut (FLI) has classified two genetically distinct strains as strains: Shamonda-Virus Europe 1 (SHAV-EU1) and Shamonda-Virus Europe 2 (SHAV-EU2). These strains Detections have been documented across several states, including in Baden-Württemberg, Bavaria, Hesse, Rhineland-Palatinate, Saarland, Saxony, and Lower Saxony. Recent reports from the The North Rhine-Westphalia Ministry of Agriculture confirm also reported multiple detections in cattle within that state, alongside similar findings in Lower Saxony. While the virus causes fever, diarrhea, and reduced milk production, animals generally recover within days and no fatalities have been reported. Local information cattle, though local data remains limited as there is currently no due to the lack of mandatory reporting requirement requirements for this specific disease. The Bavarian State Office for Health noted that direct animal-to-animal transmission has not been proven. In the Netherlands, two variants have been identified; identified, including one matches matching types previously seen in southern Germany, France, and Switzerland, while a Switzerland. A second variant common in northern Germany has spread throughout much of the country. In the Netherlands, the virus was detected in a one-day-old calf exhibiting limb defects and developmental abnormalities. While a direct causal link is not confirmed, experts note that Simbu group viruses can be transmitted via the placenta, potentially causing abortion, stillbirth, or congenital defects. In Austria, the virus has been is confirmed in cattle within the Salzburg and Tirol regions. In Tirol, while in Switzerland, the virus it was identified in the brain tissue of deceased horses, potentially explaining neurological symptoms observed in equine clinics. horses. Transmission is driven by biting midges of the genus Culicoides. The emergence of this virus, originally identified in Nigeria, suggests a northward shift in distribution potentially driven by changing climatic conditions. While no vaccine is available, authorities state there There is currently no relevant infection risk to humans.

Versions

  1. 2026-09-22 19:12 UTC Shamonda-like orthobunyavirus spreads in Western Europe
  2. 2026-09-14 03:02 UTC Shamonda-like orthobunyavirus spreads in Western Europe
  3. 2026-09-08 11:17 UTC Shamonda-like orthobunyavirus spreads in Western Europe
  4. 2026-09-05 08:27 UTC Shamonda-like orthobunyavirus spreads in Western Europe
  5. 2026-09-04 02:59 UTC Shamonda-like orthobunyavirus spreads in Western Europe
  6. 2026-09-03 09:51 UTC Shamonda-like orthobunyavirus spreads in Western Europe
  7. 2026-09-02 15:05 UTC Shamonda-like orthobunyavirus spreads in Western Europe
  8. 2026-08-31 18:08 UTC Shamonda-like orthobunyavirus spreads in Western Europe
  9. 2026-08-19 16:43 UTC Orthobunyavirus outbreak spreads across Western Europe
  10. 2026-08-05 12:12 UTC Orthobunyavirus outbreak in Central European cattle

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