Blood units are prepared for storage at the National Center for Hematology and Transfusion in Sofia, Bulgaria. It's a grim reality for patients and families the struggling EU nation where donors are troublingly scarce, hospitals are strapped for funds and blood traders are thriving. (Associated Press)

Blood units are prepared for storage at the National Center for Hematology and Transfusion in Sofia, Bulgaria. It's a grim reality for patients and families the struggling EU nation where donors are troublingly scarce, hospitals are strapped for funds and blood traders are thriving. (Associated Press)