They really screwed up with holding on to the "blood doctrine". It was concocted in the whacky minds of Rutherford and Franz. They can't abandon it now because of liability. So, now JW's can 'accept' blood fractions!
BUT, the WTBTS still needs to reconcile:
How can a JW accept blood fractions when only those who violate Jehovah's law regarding the sancitity of blood will donate the blood from which the fractions are derived?