I am a 25 year diabetic (type I) who recently tried to give blood. I was given an "indefinite deferral letter" by the red cross because i used insulin made from beef products manufactured by squibb/novo. apparantly I can't give blood til i convince them that none of the beef came from the british isles due to the possibility of mad cow disease.
I believe that in the period in question (late 1980's, early 1990's) the beef came from american stockyards, where the big producers were located.
can anyone help?