Pfizer’s New Omicron Targeting Booster Produces Strong Immune Response

The Covid-19 booster refitted with Pfizer Inc and BioNTech SE generated a strong immune response against the Omicron BA.4 and BA.5 substrains, the companies said.

The data, which the companies reported in a press release on Thursday, offers an initial window into the performance of new snaps being rolled out in the United States.


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