Are you serious? What was quoted was the following:
it is called "breakthroughs". It did NOT happen before the Delta variant,
This is nonsense as there were breakthrough cases during the Phase 3 trials as the reported Phase 3 results had an efficacy of 95%. Go read the Phase 3 trial reports from Pfizer/BioNTech and Moderna. The CDC was monitoring breakthrough cases from Jan 1, 2021 to April 31, 2021, before the Delta variant caught hold.
COVID-19 Breakthrough Case Investigations and Reporting | CDC
Quote:
Originally Posted by Velvet
Again, what sources are you quoting? The WallStreet Journal for one, says the same thing as Jim. At least that is how I understand it too.
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