1. Department of Epidemiological Sciences; Animal and Plant Health Agency (APHA); Woodham Lane Addlestone KT15 3NB UK
2. Data Sciences Group; Animal and Plant Health Agency (APHA); Woodham Lane Addlestone KT15 3NB UK
3. Disease Dynamics Unit; Department of Veterinary Medicine; University of Cambridge; Madingley Road Cambridge CB3 0ES UK
4. Veterinary and Science Policy Advice Team of APHA and Bovine Tuberculosis Programme of Defra; Nobel House, 17 Smith Square London SW1P 3JR UK