Before Omicron the chance of reinfection was ~1%. That has markedly increased w/ Omicron, especially for BA.4/5 with reduced protection from BA.1 infections. Reinfections carry substantial risk, as shown in this new analysis, so please keep your guard uphttps://t.co/Rx6p2lLw66

— Eric Topol (@EricTopol) June 21, 2022