Convalescent plasma therapy is when the liquid portion of blood is taken from a recovered coronavirus patient
It is transferred into a sick patient in hopes they will develop the antibodies needed to fight off the infection
Researchers looked at 3,082 hospitalized COVID-19 patients who received blood plasma transfusions
Just 22.3% of patients who received antibody-rich plasma died compared to 29.6% of those given plasma with low level of antibodies
Outcomes were better for those who were given the treatment within three days and were not on mechanical ventilation