I know, it is easy to feel like this, but I am basically 100% sure its not the case lol.
Here is why: It is a fact that no lock-out has had any significant effect the first 5-6 weeks anywhere. First of all it takes 3.5 weeks from infection to a death on average. Second of all, when you lock-down, you put family members in close quarters with infected people in many cases, so at least for another couple of weeks the spread can actually increase. This is very established.
Here is the 3 week period from when NYC locked down:
View attachment 345341
So after 21 days, you are already past the peak. Add two weeks to this, i.e. late april, and numbers are waaaay down already.
But then comes the natural question -- Ola, doesn't it seem really obvious like that the shut down worked a little faster than 3 weeks in NYC and then have had a tremendous effect?? Yeah it does, if we only look at NYC. The same lock-down don't even remotely have the same effect at any other place.
Like Michael Leviette puts it, "
You could say that each of these places stopped because they had wonderful social distancing, or we can simply say they stopped because there was no one left to infect. "
Because its a fact, that no other place even remotely had the same effect downward like NYC. In all other places, despite lock-downs put in place earlier in the process than NYC, i.e. earlier in relation to first death, 10th death or whatever -- the curves keeps climbing today. NYC peaked 5 april and the curve have been heading down since. Boston, Chicago, California, NJ and so forth -- they have not had their curve start to drop yet. The ones that have dropping curves are the hardest hit places like NYC, Belgium, Italy and Spain. Sweden too.
It cannot be a coincidence that the curves at all those places start to drop when immunity start to get up towards 20%, while it never drops at all in any other place (with some kind of significant wide spread in the society, some have shut it down completely, but that is anotehr question) that doesn't have an immunity up towards 10-20%. But instead often 3-4%. No matter how strict lockdowns.
Independently, you have a scientist group like this -- very established and big, from all parts of the globe -- showing how herd immunity in their mathematical model should be expected to be 10-20% instead of 50 or 90 or whatever discussed by some.
Individual variation in susceptibility or exposure to SARS-CoV-2 lowers the herd immunity threshold
Their rationale for it is quite simple, many people are much much much more likely to be infected by others, be it that you are a frontline worker or has a weak immunity system, and the first 10-20% that gets will be so over representative in likeliness to get infected that it is compareable to up to 4x as many being infected.