Israeli Largest Real World Study shows: Natural immunity is 27 times more effective than vaccination

In Israel, vaccinated individuals had 27 times higher risk of symptomatic COVID infection compared to those with natural immunity from prior COVID disease.

Full article: https://www.israelnationalnews.com/News/News.aspx/312538

The actual study: https://www.medrxiv.org/content/10.1101/2021.08.24.21262415v1.full.pdf

This study has similar results but 13x instead of 27x: https://www.medrxiv.org/content/10.1101/2021.08.24.21262415v1

Another Israeli study with similar results: Large Israeli study: Natural immunity provides 13 times more protection against Delta than Pfizer’s vaccine