New data for the "updated" (XBB.1.5) booster
~60% protection from hospitalization and ED visits vs JN.1 and recent circulating variants https://t.co/WCIXhpJ6Sd @KPSCalResearch
But vaccination w/ prior versions (& waned immunity) offered no protection vs hospitalization (Figure) pic.twitter.com/vk9FK2snUw

— Eric Topol (@EricTopol) December 29, 2023