A nurse points to a PentraSorb CRP adsorber, which is connected to a device that pumps the blood plasma through the adsorber in specific cycles, which is the main part of the new CRP-Apherese treatment for a patient suffering from the coronavirus disease (COVID-19) in the Intensive Care Unit (ICU) at Havelhoehe community hospital in Berlin, Germany, April 9, 2021. REUTERS/Fabrizio Bensch