| AIC | Akaike Information criterion |
| AUROC | Area Under Receiver-Operating Curve |
| BAL | Broncho-Alveolar Lavage |
| BIC | Bayesian Information Criterion |
| CAP | Community-Acquired Pneumonia (CAP) |
| COVID-19 | COronaVirus Disease 2019 |
| EOS | Eosinophils |
| ER | Emergency Rooms (ER) |
| HRCT | High-Resolution Computed Tomography |
| LP | Linear predictor |
| LR | Likehood Ratio |
| LYM | Lymphocytes |
| MECOR | Model for Early COvid-19 Recognition |
| MON | Monocytes |
| MPO | Myeloperoxidase |
| NET | Neutrophil Extracellular Trap |
| NEUT | Neutrophils |
| NLR | Neutrophil-to-Lymphocyte Ratio (NLR) |
| NPV | Negative Predictive Value |
| PLT | platelets |
| PPV | Positive Predictive Value |
| RT-PCR | real-time reverse-transcription polymerase chain reaction |
| SARS-CoV-2 | Severe Acute Respiratory Syndrome-CoronaVirus 2 |
| VIC | Cariance inflaction factor |
| WBC | White Blood Cells |
| WHO | World Health Organization |