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> We’ve given the mRNA vaccines to enough people to be highly confident that your fears are ungrounded.

Wasn't that the case with J&J also, till they decided to not ignore the clots.

The US has administered 250 million shots, of which 7 million were J&J. These numbers, and the fact that the mRNA started trials earlier makes me proportionately less worried about surprise side effects for the mRNA shots.

https://covid.cdc.gov/covid-data-tracker/#vaccinations

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