The Swiss Federal Agency for Food Safety and Veterinary Medicine said on the 3rd that since mid-July, cows have been reported to be sick in many parts of Switzerland, showing symptoms such as fever, diarrhea, and decreased milk production. It is suspected that they are infected with a virus that has not appeared before in the country. The Federal Agency for Food Safety and Veterinary Medicine said that the Swiss Institute of Virology and Immunology has detected a type of Bunia virus belonging to the Simbu serogroup in some acutely ill cows and is carrying out genetic tests to further determine the type of virus and confirm whether it is the cause of the disease in dairy cows. According to reports, the Bunia virus is mainly spread among ruminants through midge bites, and there is no vaccine yet. According to the Swiss Institute of Virology and Immunology, the Simbu serogroup is mainly distributed in Africa, Asia and Australia. The common Akabane disease virus belongs to the Shinbu serogroup. The study's preliminary findings are consistent with evidence from France and Germany, and both countries also suspect that a similar virus is spreading. Researchers said it is unclear whether these cow cases are linked to recent hot weather in Europe, but high temperatures can cause heat stress to cows, especially high-yielding ones, and may increase the risk of getting sick.

The Swiss Federal Agency for Food Safety and Veterinary Medicine said on the 3rd that since mid-July, cows have been reported to be sick in many parts of Switzerland, showing symptoms such as fever, diarrhea, and decreased milk production. It is suspected that they are infected with a virus that has not appeared before in the country. The Federal Agency for Food Safety and Veterinary Medicine said that the Swiss Institute of Virology and Immunology has detected a type of Bunia virus belonging to the Simbu serogroup in some acutely ill cows and is carrying out genetic tests to further determine the type of virus and confirm whether it is the cause of the disease in dairy cows. According to reports, the Bunia virus is mainly spread among ruminants through midge bites, and there is no vaccine yet. According to the Swiss Institute of Virology and Immunology, the Simbu serogroup is mainly distributed in Africa, Asia and Australia. The common Akabane disease virus belongs to the Shinbu serogroup. The study's preliminary findings are consistent with evidence from France and Germany, and both countries also suspect that a similar virus is spreading. Researchers said it is unclear whether these cow cases are linked to recent hot weather in Europe, but high temperatures can cause heat stress to cows, especially high-yielding ones, and may increase the risk of getting sick.