Lets say these side effects only happen in certain populations. If that is the case we could then target this vaccine to the rest and have it be much safer whi

Lets say these side effects only happen in certain populations. If that is the case we could then target this vaccine to the rest and have it be much safer while giving out the Pfizer-BioNTech or Moderna vaccines to this group. End result is everyone still getting their vaccine fast but less side effects (and possibly deaths due to worst case side effects). This is why we need more data or the time to study the data in this case most likely