Pfizer Responds to Research Claims
Pfizer
JANUARY 27, 2023
In the ongoing development of the Pfizer-BioNTech COVID-19 vaccine, Pfizer has not conducted gain of function or directed evolution research. This research provides a way for us to rapidly assess the ability of an existing vaccine to induce antibodies that neutralize a newly identified variant of concern. In addition, to meet U.S.
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