4. Memorandum submitted by
the Department of Environment, Food and Rural Affairs
Please find attached statistics on TB incidence
in Great Britain (Annex A). Information is provided on the counties
which have the highest level of bovine TB in 1997 and 2006, and
which had RBCT triplets in their areas. We had hoped to provide
statistics on bovine TB incidence in specific triplet areas before
and after culling operations, but unfortunately this has not been
possible in the time available.
For context Annex B shows the National Statistics
chart for the incidence of bovine TB in Great Britain over ten
years, calculated as the percentage of unrestricted herds experiencing
a confirmed breakdown (a herd disclosing reactors to the skin
test at a routine test).
As the Committee asked about how the triplets
were selected Annex C is provided for interest. It is a Standard
Operating Procedure from the RBCT which outlines the way in which
trial areas were selected for inclusion in the trial, and how
their borders were defined.