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Posted On: 12/03/2020 1:02:50 PM
Post# of 72433
I don't think Pfizer and Moderna's vaccines use a viral vector.
https://jamanetwork.com/journals/jama/fullarticle/2770485
Quote:
In cutting out the viral vector, both DNA and mRNA vaccines eliminate the risk of preexisting immunity against it, which can limit effectiveness.
https://jamanetwork.com/journals/jama/fullarticle/2770485
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