Comparing SARS-CoV-2 natural immunity to vaccine-induced immunity: ‘SARS-CoV-2-naïve vaccinees had a 13.1-fold (95% CI, 8.1 to 21.1) increased risk for breakthrough infection with the Delta compared to previously infected’
— Read on www.medrxiv.org/content/10.1101/2021.08.24.21262415v1
In other words: natural immunity 13x better than vaccines.