This is the same reason I'm ineligible, due to my studies in England before, during and after the Mad Cow Cull. For other reasons, as well, I can't even donate organs or tissue...I can give blood only to myself and since I'm not Lance Armstrong needing to blood dope...
Taken directly from the Red Cross website.
http://www.redcrossblood.org/donating-blood/eligibility-requirements/eligibility...In-Depth Discussion of Variant Creutzfeld-Jacob Disease and Blood Donation
In some parts of the world, cattle can get an infectious, fatal brain disease called Mad Cow Disease. In these same locations, humans have started to get a new disease called variant Creutzfeld-Jacob Disease (vCJD) which is also a fatal brain disease. Scientists believe that vCJD is Mad Cow Disease that has somehow transferred to humans, possibly through the food chain.
There is now evidence from a small number of case reports involving patients and laboratory animal studies that vCJD can be transmitted through transfusion. There is no test for vCJD in humans that could be used to screen blood donors and to protect the blood supply. This means that blood programs must take special precautions to keep vCJD out of the blood supply by avoiding collections from those who have been where this disease is found.
At this time, the American Red Cross donor eligibility rules related to vCJD are as follows:
You are not eligible to donate if:
From January 1, 1980, through December 31, 1996, you spent (visited or lived) a cumulative time of 3 months or more, in the United Kingdom (UK), or
From January 1, 1980, to present, you had a blood transfusion in any country(ies) in the (UK) or France. The UK includes any of the countries listed below.
Channel Islands
England
Falkland Islands
Gibraltar
Isle of Man
Northern Ireland
Scotland
Wales
You were a member of the of the U.S. military, a civilian military employee, or a dependent of a member of the U.S. military who spent a total time of 6 months on or associated with a military base in any of the following areas during the specified time frames
From 1980 through 1990 - Belgium, the Netherlands (Holland), or Germany
From 1980 through 1996 - Spain, Portugal, Turkey, Italy or Greece.
I was living in Augsburg Germany where my father was stationed from 85 to 88. It really sucks because I am a universal donor type O negative.