They aren't doing as badly as a number of other countries and never needed a lockdown. I would call that a relative success. Looking ta their graphs is interes

They aren't doing as badly as a number of other countries and never needed a lockdown. I would call that a relative success. Looking ta their graphs is interesting, they seem to be having a second wave in terms of new cases, but seem to have peaked with deaths. https://www.worldometers.info/coronavirus/country/sweden/ https://www.worldometers.info/coronavirus/country/sweden/ Regarding antibodies, the original SARS (which is the closest related virus) antibodies lasted around 3 years on average, with some people testing positive 17 years later. Doctors are expecting this to be similar, but time will tell.