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Variation in the reported sensitivity of different modalities in the diagnosis of severe acute respiratory syndrome coronavirus 2[12,15,22,24-27]
| Modality | Detection rate (%) |
| Pharyngeal PCR | 32-97 |
| BAL PCR | 93 |
| Feces PCR | 29-53 |
| Serum PCR | 1-52 |
| Serum IgM ELISA | 75-93 |
| CT scan | 88-98 |
PCR: Polymerase chain reaction; ELISA: Enzyme-linked immunosorbent assay; BAL: Broncheoalveolar lavage; CT: Computed tomography.
