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| Virus Type | Range of viral load (copies/L) | Mean value (copies/L) |
|---|---|---|
| SARS-CoV-2 | 4.8 × 104–2.3 × 106 | 3.5 × 105 |
| IAV | 3.3 × 103–8.6 × 104 | 4.3 × 104 |
| IBV | 5.4 × 103–4.6 × 104 | 2.1 × 104 |
| RSV | 3.6 × 103–9.3 × 104 | 3.3 × 104 |
