Immunoglobulin Deficiency as an Indicator of Disease Severity in Patients with COVID-19

Faeq Husain-Syed 1;István Vadász 2;Jochen Wilhelm 3;Hans-Dieter Walmrath 4;Werner Seeger 5;Horst-Walter Birk 6;Birgit Jennert 7;Hartmut Dietrich 7;Susanne Herold 8;Janina Trauth 9;Khodr Tello 5;Michael Sander 10;Rory E Morty 11;Heiko Slanina 12;Christian G Schüttler 12;John Ziebuhr 13;Shadi Kassoumeh 14;Claudio Ronco;Fiorenza Ferrari;Klaus Warnatz 17;Klaus Stahl 18;Benjamin Seeliger 19;Marius M Hoeper 20;Tobias Welte 21;Sascha David 22

2020