Professor Anthony Staines:

I would not lock down any counties. Locking down is the wrong way to think about this. What one is trying to do is turn this from a national epidemic, which is what we have at the moment, into a series of local epidemics that one can kill off one at a time. As one kills them off, life opens up in those areas in which the virus has been killed off but people cannot freely come into those areas from other parts of the country.