Lab study shows omicron-blocking antibodies persist four months after a Pfizer-BioNTech booster – The Washington Post

“This is very, brand-new for the field,” stated Pei-Yong Shi, a microbiologist at the University of Texas Medical Branch in Galveston, whose group tested antibodies in the blood of vaccinated individuals against an omicron-like infection in cooperation with Pfizer researchers. “That actually reveals that at least approximately four months, post-dose 3, there is still substantial neutralizing activity against omicron.”

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