Table 3.
Positivity rates of Ag-RTDs and NAAT aggregated by illness/transmission phases for epidemiological strata.
| Pre-Symptomatic Period (−2; −1) | Symptomatic Period (0; +14) | Transmission Period (−2; +7) |
Post-Transmission Period (+8; +14) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ag-RDTs | NAAT | ▲% | Ag-RDTs | NAAT | ▲% | Ag-RDTs | NAAT | ▲% | Ag-RDTs | NAAT | ▲% | |
| Total | 30.8% | 90.9% | −60.0% | 87.1% | 90.2% | −3.1% | 84.2% | 93.1% | −8.9% | 53.8% | 80.7% | −26.9% |
| 0–4 | 32.1% | 95.8% | −63.7% | 90.0% | 93.5% | −3.5% | 84.3% | 94.7% | −10.4% | 59.0% | 84.3% | −25.3% |
| 5–14 | 42.6% | 95.3% | −52.7% | 90.8% | 94.7% | −3.9% | 87.4% | 95.7% | −8.3% | 49.2% | 80.6% | −31.5% |
| 15–44 | 28.1% | 90.5% | −62.3% | 86.7% | 89.6% | −2.8% | 83.8% | 93.4% | −9.6% | 43.8% | 79.3% | −35.5% |
| 45–64 | 29.4% | 90.1% | −60.7% | 86.7% | 90.2% | −3.5% | 83.9% | 93.2% | −9.3% | 53.5% | 81.0% | −27.6% |
| 65–80 | 37.0% | 91.3% | −54.2% | 87.8% | 92.2% | −4.4% | 85.3% | 93.5% | −8.1% | 70.6% | 85.3% | −14.7% |
| +80 | 37.1% | 88.5% | −51.4% | 87.8% | 87.0% | 0.9% | 84.3% | 88.3% | −4.0% | 77.1% | 83.4% | −6.3% |
| Health workers | 22.3% | 86.1% | −63.8% | 81.1% | 82.6% | −1.5% | 79.9% | 89.7% | −9.9% | 29.5% | 76.7% | −47.1% |
| Nursing home residents | 24.4% | 84.9% | −60.5% | 79.7% | 82.0% | −2.3% | 74.9% | 84.7% | −9.8% | 50.8% | 77.4% | −26.6% |
| Hospitalized | 35.5% | 82.5% | −47.1% | 78.7% | 85.4% | −6.7% | 76.2% | 85.4% | −9.3% | 69.6% | 82.2% | −12.6% |
| Exitus | 38.8% | 81.8% | −43.0% | 87.3% | 85.0% | 2.3% | 83.4% | 84.2% | −0.8% | 82.4% | 82.8% | −0.5% |
| Higher incidence rate * | 31.3% | 91.0% | −59.7% | 87.4% | 90.3% | −3.0% | 84.4% | 93.2% | −8.8% | 54.5% | 80.7% | −26.2% |
| Lower incidence rate * | 28.1% | 90.3% | −62.1% | 85.8% | 89.6% | −3.8% | 83.0% | 92.6% | −9.6% | 49.9% | 80.9% | −31.0% |
Ag-RDTs: rapid antigenic tests; NAAT: nucleic acid amplification testing. * Cut-off point fixed within 7-day incidence rate of 150 cases per 100,000 inhabitants.