[exDemMom]

•As many as 20 per cent of people in Stockholm may be immune, he suggested

And how is that number derived? How can they be immune unless they have had the disease or a vaccine? I don't think 20% of the population of ANY country has had Covid-19.

[heartwood]

The number 20% of Stockholm infected comes from modeling and testing.

I am guessing more modeling than testing, because there is very little mention of the latter.

[Dr. Sivana]

I don't think 20% of the population of ANY country has had Covid-19.

The 20% refers to the single city of Stockholm, not the entire country of Sweden. I believe that several cities have 20%+ immunity due to having had it with mild or no effects.

[CharlesWayneCT]

The new york survey suggests 20% of city demwellers might have had it, and 15% of the state

[FreeReign]

I don't think 20% of the population of ANY country has had Covid-19.

21% of NYC has had COVID-19 according to the latest antibodies numbers.