In reply to: It might partially explain what's happened in Sweden posted by combodraw
#15 if we exclude countries with fewer than 1,000,000 residents
Though an accurate count of cases is probably difficult to determine for most countries, due to timing and availability of tests and requirements and willingness of residents to get tests. Plus asymptomatic cases might exclude many cases from being tested as well.
EDIT - though I think we can safely assume the number of cases by any measure is short of 70% of the population which is the number I have seen for estimated "herd" immunity via infection
My point isn't that Sweden has had more exposure to previous viruses than elsewhere. It's that there's maybe a strong "herd immunity" affect going on in Sweden through a combination of exposure to previous viruses and exposure to COVID itself.