The vax Pfizer tested, ‘process 1’ was carefully made in small batches through a PCR DNA replication method, which also had impurities removed with magnetic beads.
In the vax the public got, ‘process 2,’ DNA was replicated in vats of E. coli bacteria instead, which had many unremoved contaminants. This vax was not tested, yet they told everyone it was tested ‘safe and effective.’
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Two different manufacturing processes. Pfizer covid vaccines for the clinical trials were mostly produced using manufacturing ‘process 1’ whereas the vaccines used for population vaccination were produced using a different ‘process 2’
Interview with Josh Guetzkow PhD
Here is the BMJ link: https://www.bmj.com/content/378/bmj.o1731/rr-2
Pfizer vaccine manufacture
Dr. John Campbell