RIO DE JANEIRO, BRAZIL – JUNE 05: Andre Magalhaes, nurse, donates plasma through a process called plasmapheresis at Hemorio amidst the coronavirus (COVID-19) pandemic on June 5, 2020 in Rio de Janeiro, Brazil. Hemorio is one of the institutions that uses plasma transfusion technology, when the blood of patients that survived COVID-19 is utilized to strengthen the immunity of other victims infected by the virus. Hematologist Alvaro D’alincourt works at Hemorio on the front lines of fighting the virus, and is happy with the results of the transfusions. He claims two employees had the disease and responded very well to the use of plasma. (Photo by Buda Mendes/Getty Images)