1. Recommendations to reduce the possible risk of transmission of Creutzfeldt-Jakob disease and variant Creutzfeldt-Jakob disease by blood and blood components Publication: Silver Spring, MD : Center for Biologics Evaluation and Research, August 2020 Subject(s): Blood DonorsBlood TransfusionCreutzfeldt-Jakob Syndrome -- prevention & controlCreutzfeldt-Jakob Syndrome -- transmissionUnited StatesUnited States. Department of Health and Human Services.United States. Food and Drug Administration.