| SARS-CoV-2 | severe acute respiratory syndrome coronavirus 2 |
| WBCS | White Blood Cell Score |
| SIRS | systemic inflammatory response syndrome |
| WHO | World Health Organization |
| MODS | multiple organ dysfunction syndrome |
| NLR | neutrophil to lymphocyte ratio |
| CRP | C-reactive protein |
| LDH | lactate dehydrogenase |
| CBC | complete blood count |
| CAP | community-acquired pneumonia |
| G-CSF | granulocyte colony-stimulating factor |
| HIV | human immunodeficiency virus |
| WBC | white blood cell concentration |
| RBC | red blood cell concentration |
| HGB | hemoglobin concentration |
| PLT | platelet concentration |
| AUC | area under the curve |
| OR | odds ratio |
| CI | confidence interval |
| ICU | intensive care unit |
| RSV | respiratory syncytial virus |
| SARS | severe acute respiratory syndrome |
| MERS | Middle East respiratory syndrome |
| IAV | influenza A virus |
| IL-6 | interleukin 6 |
| NET | neutrophil extracellular traps |