Hmm... since making was used in conjunction with lockdowns in Poland it is difficult to highlight if either worked would have worked in isolation or not.
Tough to get good info on anything to do with covid.
Lockdowns: Pretty indisputable that if one has half as many contacts (or whatever proportion the lockdown reduced contact) then one has half as much of a chance of being infected.
Of course what difference any particular lockdown made in contacts depends on how well it was followed.
But they’re very expensive.
The country that was far, far more successful than any other fighting the covid was Taiwan.
And that’s because they cut off China contact early and strictly and isolated any cases that had managed to come in.
I heard today that Krzysztof Krawczyk passed away. I don’t know if you were familiar with him, but he was a giant of Polish music, and I think the death was COVID related.