In reality the UK probably wouldn't even be able to manage that - for example, we have a constant stream of lorry drivers coming in from locations throughout Europe to destinations throughout the UK, many of them with absolutely vital goods, and that's a great way to spread Covid from country to country. Somewhere like the US would stand even less chance.
Haven’t heard of it as a source of transmission. Truck drivers generally don’t get off their shift and then go sing karaoke.
And I live now in Quebec, which got local transmission down to almost nothing. But then they opened bars for three months. I think if they had kept them closed a month longer and told the pop “get to zero and we can have a normal winter” we could have done it. Now we’re surging again.
Flatten the curve started as a Twitter meme and only then spread to governments. I don’t think govts wanted to eliminate, but my point is I wish those who were in the forefront had sent a different message. I was looking at this from mid feb, before western governments were generally sending any message at all.
Now we just have hard choices.