Bag of convalescent plasma (IMAGE) Johns Hopkins Medicine Caption A prospective study by Johns Hopkins Medicine researchers demonstrates that convalescent plasma (shown here) — a blood product collected from patients recovered from COVID-19— was safe in high risk children infected with or exposed to the virus that causes the illness. Credit Will Kirk, Johns Hopkins University Usage Restrictions None 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.