 For his second Executive Decision segment of Mad Money Wednesday night, Jim Cramer spoke with William Greenman, president and CEO of Cerus Corp. , the plasma transfusion company that is in the fight to beat Covid-19. Greenman said Cerus got its start in 2015, fighting the Ebola outbreak. Greenman added that there are many studies happening around the world to quantify the benefits of blood transfusions and how they can help Covid-19 patients. 