Have you ever wondered what’s in the blood supply you may receive during a transfusion? Dr. R. Clinton Ohlers explores the history and evolving concerns surrounding blood safety—from hepatitis C transmission before the virus was identified, to HIV screening, and current questions about spike protein exposure. Drawing on his experience as a researcher and educator, Dr. Ohlers shares insights from his work with SafeBlood Donation and ongoing case-study research examining reported health outcomes associated with mRNA exposure through blood transfusions.