Not looking for a prolonged debate in this thread because it’ll drag it way off-topic but the article you posted states otherwise;
>>Sweden did not achieve immunity, far from it - Many in Sweden argued that its plan would allow its population to achieve "herd immunity."
But that's not even close to being achieved: Tegnell said in June that "the trends in immunity have been surprisingly slow." One study then showed 6.1% of Sweden's population had developed antibodies by late May.
It's the same for other countries, where only a small proportion of the population appear to have achieved the immunity, and experts say immunity may not even last that long.
Experts say the small build-up of immunity may be a minor factor in the fall in deaths, but not enough to dramatically drive numbers down.<<