Tweet from EricTopol at October 05, 2022 at 02:20PM
Prior Omicron infections protected against BA.5 (~80% effectiveness) whereas prior Covid, non-Omicron protection was markedly lower (~30%). Likely related both to immunity waning and cross-immunity within Omicron lineages
https://t.co/kEtABqGH97 @NEJM https://t.co/V9wjEcGczS— Eric Topol (@EricTopol)
Oct 5, 2022
from http://twitter.com/EricTopol