On March 28, researchers from the Houston Methodist Hospital in the US, began clinical trials to transfuse plasma from recovered Covid-19 patients into critically ill patients, they noted in a statement.

In the study, published in The American Journal of Pathology, the scientists described the clinical outcomes of the convalescent plasma transfusion trial, showing 19 out of 25 patients improving with the treatment, and 11 discharged from the hospital.

https://health.economictimes.indiatimes.com/news/pharma/covid-19-plasma-therapy-safe-without-adverse-side-effects-study/76172901