Shamonda virus detected in Spanish cattle farms

The Shamonda virus, an insect-borne pathogen previously rare outside of Africa and Japan, has been confirmed in seven cattle farms across Córdoba and Toledo, Spain. The virus, specifically type 1, was identified by the Central Veterinary Laboratory of Algete.

Infected cattle typically exhibit symptoms such as fever, diarrhea, and a significant reduction in milk production, which can drop by 10% to 20% over a period of seven to ten days. While mortality is rare, the virus can cause reproductive issues, including abortions or embryo reabsorption. It also affects sheep, goats, and horses, though these species often show fewer symptoms.

Authorities in Cantabria have warned of a “high” probability of the virus spreading to their region, which could lead to “grave” economic consequences for the local livestock sector. The spread is attributed to insect vectors that thrive in mild temperatures and can travel long distances via air currents. The Spanish Ministry of Agriculture is maintaining active surveillance to monitor potential new cases in other regions.