rebel8 writes:
Still, if 3 million donors are needed for each unit of clotting factor, this still means an immense amount of donated blood is needed to treat these folks.
To clarify, though, a single unit of donated blood is fractionated into its main components: red blood cells, white blood cells, plasma and platelets. Clotting factors can be extracted from the plasma by a process which basically filters out clotting factors and immune globulins, leaving pure plasma to be donated to a patient who needs it. White blood cells go through a similar process to extract interferons and interleukons for treating cancer patients. One single donation of blood can help three patients within days of donation, via the RBCs, plasma and platelets. The other components are used in making pooled blood products.
So yes, it takes a lot of donated blood to make a single dose of Factor VIII or Factor IX, it does not "waste" donations of blood, per se, because other patients do benefit from the RBCs, plasma and platelets.
I find it ironic for the WTS to compare forced transfusions of a single component to "rape", and consenting to a transfusion of a single unit of major components to be the moral equivalent of "fornication" - yet if you carry the metaphor through in the case of a single dose of clotting factor from large donor pools, it would be tantamount to participating in an orgy - and it carries the WTS's seal of approval.
I will be donating again on Monday. I try to consistently donate about every 9 weeks, since 1998.