Tuberculosis (TB) testing interval map for Great Britain, highlighting the different bovine TB (bTB) risk areas in England (High Risk Area; Edge Area; and Low Risk Area), Wales (High TB Area, Intermediate TB Area and Low TB Area) and Scotland (Officially TB Free). Tuberculosis (TB) testing interval map for Great Britain, highlighting the different bovine TB (bTB) risk areas in England (High Risk Area; Edge Area; and Low Risk Area), Wales (High TB Area, Intermediate TB Area and Low TB Area) and Scotland (Officially TB Free). Picture: APHA Elizabeth Mullineaux et al. In Practice 2019;41:198-204 Copyright © British Veterinary Association. All rights reserved.