The problem i have with the immunity herd thing mate, is to achieve 60% of immunity in the UK, the UK will have to go through worse then what we are seeing in Italy at the moment. The death toll there is at is close to 4k with 41k cases.
39 million will have to get the virus for 60% herd immunity - if it turns out to be true you cant get it again which isn't conclusive.
The following is the the death rate per 1000 confirmed cases in the world per country
Italy: 82.98
Iran: 69.76
Spain: 46.16
UK: 44.05
China 40.1
Netherlands: 30.89
France 28.9
USA 15.06
Belgium:11.07
S.Korea:10.62
Sweden: 7.64
Denmark: 5.21
So if you apply the UK's mortality rate into of 44.05 per 1000 cases into 39 million, its scary and that is as today, without applying the principal of exponential growth.
Its a simple decision self isolate or loose that number of people. Life will be hard, but we will be around to moan about it.
Oh I'm not advocating it as a way to do it mate. I need to make that clear. I think it's far too risky. There'd be about 400,000 deaths.
I'm just stating the fact that, so far, the only way to know that you're 'safe' from this illness is if you get it and recover.
So my point really was, where does that leave us?
In my mind, the only way a 'herd immunity' plan would have worked would have been if we'd have had a load of beds available and ventilators and stuff. Cancelled all large gatherings for a set time (continuously reviewed etc). So there could then be a more calculated approach to it. You could mitigate for a certain amount of people getting it, and then know you had the systems in place to handle those who needed the care.
The worrying thing was it was the plan this time last week, but they hadn't done enough of the prep work which would have needed to go into it. That's why they've had to change their approach so much.