Vaccine for bovine TB could prevent future badger culls This would be a long and complex process that "may take years," the Government's chief veterinary officer, Nigel Gibbens, told The Independent. A controversial badger cull is due to start within the next fortnight in an attempt to control the disease. Marksmen are expected to shoot the animals in a 212-square mile area in west Gloucestershire and west Somerset. Animal rights activists oppose the cull and some farmers have said they will be pulling out following threats and intimidation from extremists.