Plasma Donor Mike Kerr, safety chief for the Tulsa, Okla., district of the Army Corps of Engineers, donated 650 ml of convalescent plasma on April 14, 2020, after recovering from the coronavirus. According to the manager at the Oklahoma Blood Institute, Kerr was the first person in Tulsa to donate plasma for COVID-19 treatment. His donation will help four Tulsa area residents who are suffering from the effects of COVID-19. SHARE: Download: Full Size (1.13 MB) Tags: corps of engineers, plasma, Army, Coronavirus Credit: Preston Chasteen, Army VIRIN: 200414-A-CE999-3739Y.JPG Photo Gallery