As reported in Dairy Australia's Dairyweb News - October 17
Dairy heifers in northern Victoria have been detected with the state’s first indications of bluetongue virus.
BTV antibodies were detected in 12-month-old heifers near Echuca. The detection suggests the animals had previous exposure to the disease, but were not displaying clinical signs. The news could endanger Victoria’s BTV-free status required for the export of livestock including animals to China.
For the next 30 days, part of northern Victoria will be a BTV zone, and livestock within a 100km of the affected property will be ineligible to export to countries requiring a BTV-free status. Movement within Australia is not restricted.
Victoria’s chief veterinary officer Dr Charles Milne said Agriculture Victoria would observe herds and conduct on-farm sampling of cattle in the area for the next three weeks “to identify the potential source of the virus and determine if local spread of this insect-borne disease has occurred”.
BTV is spread by midge bites.