The European Centre for Disease Prevention and Control was asked by the European Commission to assess the risk involved in changing the testing requirements for HIV (human immunodeficiency virus), hepatitis B virus (HBV), and hepatitis C virus (HCV) with regard to the quality and safety of non-partner semen donations.
In order to assist Member States with the implementation of the new requirements, the EU Commission asked ECDC to construct a map indicating HTLV-1 high-prevalence areas in the world.