Bluetongue cases in livestock are on the rise in the county according to Essex Trading Standards. The disease was first confirmed in Norfolk on August 26 in a single sheep and this month three cases were identified in Essex. There have been 98 incidents in total across the country. As a result, the Department for Environment, Food and Rural Affairs has introduced a restricted zone which now covers all of Hertfordshire, Essex, Norfolk, Suffolk, Kent, East Sussex, Lincolnshire, Cambridgeshire, Bedfordshire, all Greater London, Surrey and West Sussex. The East Riding of Yorkshire is also affected…