Dr. Aaron Tobian (IMAGE) Johns Hopkins Medicine Caption Johns Hopkins Medicine’s Dr. Aaron Tobian seen thawing a bag of convalescent plasma, an antibody-rich blood product collected from patients recovered from COVID-19. A new Johns Hopkins-led study — for which Dr. Tobian is one of the authors — suggests early treatment with convalescent plasma may lower the risk of long COVID symptoms in patients with the disease. Credit Will Kirk, Johns Hopkins University Usage Restrictions N/A License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.