The Center for Disease Control and Prevention has calculated that the actual number of coronavirus infections is at least ten times higher than previously assumed. The calculation was made based on antibody tests, which can show whether a person has been exposed to the virus in the past and built immunity.
This is good news in two ways:
1. It means that most people who get infected have very mild or no symptoms at all, as most were not aware that they had Coronavirus and could not remember being sick during the last several months.
2. It means that Covid-19 is nowhere near as deadly as previously assumed, as the lethality rate has to be divided at least by ten, compared to previous calculations.
https://outkick.com/cdc-now-estimates-there-have-been-over-20-million-coronavirus-cases/