Epizootic hemorrhagic disease (EHD), a viral disease transmitted by mosquitoes, has been diagnosed in cattle in Sardinia and Sicily, Italy, marking the first time the disease has been reported in Europe. The disease, which is also found in Asia, Australia, and Africa, causes symptoms such as high fever, lethargy, and lack of appetite in livestock, and can lead to significant productivity losses, particularly on dairy farms. EHD is most often spread in late summer and early autumn, especially in low-lying, wet areas. There are currently no approved vaccines for the disease.