Restricted zones have been put in place covering Norfolk and Suffolk after several cases of bluetongue virus were confirmed. The Department for Environment, Food and Rural Affairs (Defra) confirmed the move from a temporary control zone to a fully restrictive zone last week after officers found cases of BTV-3 at five premises. The UK’s chief veterinary officer Christine Middlemiss said the restriction across the two counties was to mitigate the risk of further cases spreading. She added: “This means all keepers in these regions must urgently act now to both prevent the disease spreading to the…