I tend to think it has been wider spread. If it was detected and confirmed in China in December, it was probably there all Autumn and in Europe at least a few weeks before we thought.
I do trust the Government and Boris, and I'm following the guidelines. But I do think we've just slightly over reacted.
I've been inundated for the last few years with memes claiming Tory austerity killed 130,000. If there is any truth in this, then how many deaths will a 10-20% crash in the GDP of the UK and the aftermath cause regardless of CV?
I just hope they resist pressure to go further. The current restrictions are in my opinion far enough.