If there was a mutant froggy strain of Covid which no amount of garlic could cure, do you think we would be throwing our border gates open, and letting infected french drivers into Kent?
No, we would bar everyone from any country with a new strain.
I think the Government have made this worse. There are over a thousand variants of Covid which is only one year old. A different variant has now emerged in the south east and some parts of London. Those areas remained in Tier 2 when most of the rest of the UK were put into Tier 3 seven weeks ago.
The result was Manchester, Liverpool, and other areas, the number of covid cases was drastically reduced. In the Tier 2 areas, it has drastically increased. Rather than admit to a mistake, the Government mad up this mutant killer strain as an excuse to bump London into tier 3 and 4.