Covid-19 vaccines are still "experimental" and are not approved by the FDA.
If the vaccines begin causing serious health problems as predicted by some medical experts, they may discontinue some of the vaccines due to severe health risks.

In that case, blood transfusion is one way of injecting people with that problem vaccine. Will Pfizer or other vaccinated people be banned from donating blood for life? Or will we need to segregate the nation's blood supply?

Also, I read earlier that Life Insurance companies won't cover dying from complications due to an "experimental" vaccine.