Journal Article Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't ACE2 protein, human Angiotensin-Converting Enzyme 2 B cells COVID-19 Common variable immunodeficiency Coronavirus DNA, Bacterial EC 3.4.15.1 EC 3.4.17.23 Hyperimmune globulin Immunoglobulin G Immunoglobulins, Intravenous Immunologic Factors Intravenous immunoglobulin NF-kappa B Oligodeoxyribonucleotides Peptidyl-Dipeptidase A Review SARS-CoV-2 STAT3 Transcription Factor STAT3 Transcription factor STAT3 protein, human Spike Glycoprotein, Coronavirus TLR9 protein, human Toll-Like Receptor 9 Toll-like Receptor 9 spike protein, SARS-CoV-2