“The variant was 27 times more likely to break through Pfizer protection from January-February and cause symptoms than it was to penetrate natural immunity from the same period”

“The study by Maccabi Healthcare Service looked at individuals who had either gotten two shots of the vaccine by the end of February or tested positive for COVID-19 by that time.

It compared 46,035 Maccabi members who caught the coronavirus at some point during the pandemic and the same number of double-vaccinated people.”

https://www.timesofisrael.com/study-covid-recovery-gave-israelis-longer-lasting-delta-defense-than-vaccines/