I don’t think that’s how it works. If you have sources showing that natural immunity = sterilizing immunity, please share, otherwise we have to assume the exist

I don’t think that’s how it works. If you have sources showing that natural immunity = sterilizing immunity, please share, otherwise we have to assume the existing consensus that sterilizing immunity is a special condition not usually achieved after infection for airborne viruses. Not a direct source but you can check refs 41-47 on this paper: https://www.frontiersin.org/articles/10.3389/fimmu.2020.571481/full https://www.frontiersin.org/articles/10.3389/fimmu.2020.5714...