Hello undercover :o)
It would appear that if you call the new products *fake blood*/*oxygen therapeutics*/*blood substitutes* or something which *distances* them from blood, those posting to the thread for which you provided a link appear to conveniently overlook the fact that haemoglobin is contained in blood and that haemoglobin forms the basis for the new products currently undergoing tests. It would appear that these people are totally ignorant about the constitution of blood.
I read somewhere that Jehovah's Witness patients are usually willing to take any blood treatment/product which appears on the *acceptable* list of the WTBTS. One report I read also stated that a Jehovah's Witness was confused when she was allowed to use one of the new products and commented 'Apparently it is not blood'.
So, there you have it! Human blood transfusion is not allowed because there is a divine command to *abstain from blood*. HOWEVER....... you can take purified bovine haemoglobin because *apparently it is not blood* and therefore does not contravene the divine command.
Presumably, following WTBTS's statements, a Jehovah's Witness could in all conscience, have a transfusion of every fraction of blood minus one fraction, and it would not be *blood*.
* Such therapies are not transfusions of those primary components; they usually involve parts or fractions thereof. Should Christians accept these fractions in medical treatment? We cannot say. The Bible does not give details, so a Christian must make his own conscientious decision before God.*
Watchtower - June 15th, 2000