Remember why this kind of thing is a big deal?
Anyway, Canada, New Zealand, and the UK have already banned ME/CFS patients from donating blood (though the UK is saying it's to protect the health of the donors). The United States hasn't followed suit, at least not yet. From the Associated Press:
No one knows how people become infected, but Alter said a major study is under way to see if there's any evidence of transmission through blood.So apparently we aren't worried about those healthy donors who have MLVs yet.
In the meantime, federal regulations require that blood donors be in good health, said FDA's Dr. Hira Nakhasi.