We publish the disease surveillance data annually in August. To pick up on the point that the hon. Member for Penistone and Stockbridge made, that includes data specific to the cull areas that we have under way. Having just implemented the new use and the adoption of the interferon gamma test, it is too early to tell how much impact that will have. What we do know is that the basic surveillance testing measures, pre-movement testing and restrictions have been in place for a number of years. As in Wales, they have undoubtedly contributed to holding the disease in check, but we know that, on their own, the measures will not be enough to roll the disease back.
We continue to do work on developing a cattle vaccine. The BCG vaccine can be used in cattle, but we know it is not 100% effective. It probably gives between 65% and 70% protection to herds, but that would nevertheless be beneficial if we could secure the right kind of test that could differentiate the vaccine from TB. Some years ago, we did manage to get in place an interferon gamma blood test that could do that, but it unfortunately threw up a lot of false positives, which is a common problem. We are now doing work to consider the skin test. We believe that we are close to getting a skin test that can distinguish between the disease and the vaccine. When we are able to get that in place, we will work towards starting trials of that.
A number of Members have raised the issue of Wales. As my hon. Friends the Members for Carmarthen West and South Pembrokeshire (Simon Hart) and for The Cotswolds (Geoffrey Clifton-Brown) pointed out, the area in Wales under the vaccination pilot represented just 1.5% of the country. Wales’ cattle movement restrictions almost mirror ours; there is very little difference. The differences tend to be in the types of restrictions on cattle markets, but they are minor differences. All the other approaches, on surveillance testing and restrictions, are remarkably similar. If we look at the figures, the latest statistics show that 95% of Welsh herds and 94.2% of English herds are TB-free, so the difference is not enormous.
The large drop in TB in Wales that has been quoted by a number of Members seems to be based on a reference point of 2012-13, which was a year with a very high prevalence of disease. In the past year, Wales has seen a 23% increase in the number of cattle slaughtered due to TB, while England has seen just a 4% increase, so we can trade statistics, but I simply point out that the approach in Wales to cattle movement controls is remarkably similar to what we are doing in England. The area covered by Wales’ vaccination pilot is nowhere near large enough to draw the conclusions and inferences that some Members are drawing.
To turn to the badger cull and the science, the hon. Member for Newport West (Paul Flynn)—he opened the debate, and he has a long track record of campaigning on wildlife issues and animal welfare issues—rightly pointed out that badgers are sentient creatures and that we would not do the cull unless we needed to. As I have
made clear many times before, I would not sanction the cull unless I believed it was necessary to combat this terrible disease. The advice we have from our chief veterinary officer is clear that we cannot eradicate the disease unless we also tackle the reservoir of the disease in the wildlife population. While the policy is contentious, it is the right policy. Sometimes Governments have to pursue the right policy, even if it is not popular.