An experienced and active ICU physician, Elliott Bennett-Guerrero is also medical director for perioperative quality and patient safety at Stony Brook Medicine. Elliott Bennett-Guerrero has conducted studies in search of new coronavirus treatments. Stony Brook Medicine conducted a study on whether convalescent blood plasma from people with a prior Covid-19 infection can be used to help others recover from it. The clinical trial was published in Critical Care Medicine, which is the official journal of the Society of Critical Care Medicine. In the trial, Stony Brook used a test to verify whether a person who had Covid-19 had a sufficient number of IgG and IgM antibodies for use in treatment. This test analyzes a drop of blood from a fingertip and offers results in approximately 15 minutes. The study then randomized hospitalized patients with COVID-19 infection to receive either 2 bags of this "convalescent" plasma or 2 bags of standard plasma (not high in antibodies to COVID-19. The study showed that this treatment increased antibodies to COVID-19 but it did not demonstrate an improvement in patient outcome.