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The Omicron-adapted COVID-19 vaccine booster developed by Pfizer Inc and BioNTech SE sharply reduced hospitalizations among older patients, Israeli researchers said on Monday, in some of the first evidence of the jab's real-world effectiveness.
The study by researchers from healthcare provider Clalit, Ben-Gurion University of the Negev and Sapir College has not yet been peer-reviewed.
It found an 81% reduction in hospitalizations among people aged 65 and older who had received the booster against those who had previously received at least two COVID vaccinations, but not the Omicron-adapted shot