I'm glad they don't want my blood, I really dislike vampires.
I'm guessing it makes sense as a rough way to limit infectious deceases. You need only look to China to see how far something like AIDS can spread if you don't do blood donations right. If I recalls correctly they infected something like 50k people by accident.
Notice, that the next infectious decease like AIDS might not have been discovered yet. Hence, why a lot of precautions around blood donations makes sense.
I'm glad they don't want my blood, I really dislike vampires.
I'm guessing it makes sense as a rough way to limit infectious deceases. You need only look to China to see how far something like AIDS can spread if you don't do blood donations right. If I recalls correctly they infected something like 50k people by accident.
Notice, that the next infectious decease like AIDS might not have been discovered yet. Hence, why a lot of precautions around blood donations makes sense.