| APS | antiphospholipid antibody syndrome |
| ARDS | acute respiratory distress syndrome |
| CAPs | catastrophic anti-phospholipid syndrome |
| CLLS | capillary leak-like syndrome |
| CoV | coronavirus |
| COVID-19 | coronavirus disease-2019 |
| HIgCP | Hyperimmune IgG-containing plasma |
| RBD | receptor-binding domain |
| SARS | severe acute respiratory syndrome |
| WHO | World Health Organization |
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