Maybe you should read this from an actual epidemiologist: https://ccdd.hsph.harvard.edu/will-covid-19-go-away-on-its-o...
The article is explaining what the default assumption should be. Empirical data might change that view.
Maybe you should read this from an actual epidemiologist: https://ccdd.hsph.harvard.edu/will-covid-19-go-away-on-its-o...