The have to go through an approval process on every update but AFAICR only with a study including 300 adults, so substantially less then the tens of thousands that were included in the Biontec/Moderna trails.
Thanks. So they only test for lack of side effects, not for effectivity (outside of leech dish experiments), because with just 300 it would take decades to see a meaningful delta? (unless they do challenge tests?)
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The have to go through an approval process on every update but AFAICR only with a study including 300 adults, so substantially less then the tens of thousands that were included in the Biontec/Moderna trails.
Thanks. So they only test for lack of side effects, not for effectivity (outside of leech dish experiments), because with just 300 it would take decades to see a meaningful delta? (unless they do challenge tests?)
You think the mRNA vaccines with minimal changes be treated similarly? e.g one years flu cocktail, vs the next?