Tweet from EricTopol at March 20, 2022 at 11:33AM

Israel’s findings of protection for the 3rd and 4th dose are quite different, both in people age 60+, early read out at just 12+ days
3rd shot (Delta wave): ~15-fold protection vs severe illness
4th shot (Omicron wave): ~4-fold protection vs severe illness https://t.co/JgpGn9NJgb

— Eric Topol (@EricTopol)
Mar 20, 2022

from http://twitter.com/EricTopol