Major, it's very very very very unlikely you've been affected. Please don't worry.
I used to get the regular updates from govt. statisticians on CJD cases. Each figure represented appalling heartbreak and suffering, but the astonishing thing was that there were so few, given almost everyone in the country was exposed to BSE, repeatedly and for a long period of time.
This latest research is about a potential risk - it needs further research and is important for government policy but it's not something that should panic anyone right now. We may, almost all of us, continue to be lucky.