Published On Sep 12, 2023
Here I give a brief overview of how the updated Novavax protein-based vaccine XBB1.5 booster works. The mechanism of immune response action is the same as the prior initial vaccine series, which targeted the ancestral SARS-CoV-2 virus, but now the isolated spike protein being introduced in this booster has been upgraded. Protein based vaccines are a technology that has been used for decades.
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