.... People are not eligible to donate blood or plasma if they have spent a cumulative total of three months or more in the United Kingdom (U.K.) between January 1980, and December 31, 1996, or if they have spent a cumulative total of three months or more in France between January 1980, and December 31, 1996, or if they have spent a cumulative total of five years or more in Western Europe outside the U.K. or France since 1980. In addition, people will no longer be eligible to donate blood or plasma if they have had a blood transfusion in the U.K., France or Western Europe since 1980. This is owing to the risk of transmission of variant Creutzfeldt Jakob Disease (vCJD) through blood ....
.... People who have lived in certain regions of Africa, who may have been exposed to a new strain of the virus that causes AIDS (HIV-I Group O), are not eligible to donate blood. People who have received a blood transfusion while visiting there or who have had sex with someone that has lived there, are also not permitted to donate blood. This is not based on race or ethnicity but possible exposure to HIV-I Group O. Countries included are: Cameroon, Central African Republic, Chad, Congo, Equatorial Guinea, Gabon, Niger and Nigeria ....