That's why I provided you another link.
This is really interesting from that article
https://www.folkhalsomyndigheten.se...dersokning-av-antikroppar-for-covid-19-virus/
In terms of age differences, the results show that antibodies to covid-19 were most common among people aged between 20 and 64 years. Overall, 6.7 per cent of samples in this group were positive, compared with 4.7 per cent in the 0-19 age group and 2.7 per cent in the 65-95 age group.
Seem like it's not herd immunity
Granted it is May data. I'm looking for an update.
One of their colleges did a recent analysis
The study showed that in the period from 31 August to 14 September 2020, only 6 of the 9,907 individuals who participated had an active infection with covid-19. The low incidence of covid-19 in the group is consistent with other observations that the spread of infection in the country remains low.
Found an partial update:
https://www.folkhalsomyndigheten.se...-mot-covid-19-i-olika-grupper-i-befolkningen/
The survey shows that 18.7 percent (95 percent confidence interval 14.8-23.3) of the inhabitants of rinkeby-kista district had depretable levels of antibodies. No statistical difference between the sexes or between age groups could be determined.
The analysis also shows that in the dossier there is a higher probability of antibodies in people working in professions with many contacts with other people. This applies, for example, to work in health and social care and service professions. Higher probability also includes people living in a household with five or more people.
The Stockholm region had the highest proportion of antibody positives at week 24, with 11.5 per cent followed by Västra Götaland with 4.9 per cent. Skåne had no antibody positive in the group of residue samples with a confidence interval from 0 to 2.9 percent.