A vaccine can be part of herd immunity. I think we should monitor Sweden closely.
So far it's quite interesting.
Sweden is 7th on the list of deaths/1M population with 213 (amongst populated countries, I leave off San Marino, Andorra, and Sint Maarten). Against their most direct peers (Norway at 36 & Finland at 32), they have roughly 6x the number of deaths per 1M residents.
I also question their case counts, as their #tests/1M population is not particularly high relative to other OECD countries, and their death/case percentage is currently 12.2%, so I think they *must* have a high proportion of undocumented cases, i.e. they're only giving tests to people who they're fairly sure have it.
Still, if they're able to do this while countries like Italy, France, Spain, and the UK are all shut down and have higher deaths/1M, maybe the strategy works well enough relative to mandated shutdowns. I think the next week or two will tell us a lot.