Читать книгу Farm Animal Medicine and Surgery - Graham R Duncanson - Страница 190

This condition is caused by an Orthobunyavirus (Akabane virus) and is spread by several species of mosquito and biting midge. It occurs in the tropics and subtropics, namely in northern Australia, Japan, Korea and South Africa, and the author has seen it in the Middle East. It causes congenital abnormalities in full-term calves as well as abortion, but other than these signs adults are normally asymptomatic. There is a vaccine available.