Table 1 Lead time of normalized IAV viral RNA signal to weekly IAV percent positivity.
Outbreak progression | Lead time of wastewater to clinical metric | Details |
|---|---|---|
First detection | 17 days | WWS: IAV in population first identified Clinical: IAV in population first identified |
Outbreak detection | 21 days | WWS: First 3 consecutive days of increasing IAV viral signal Clinical: First 2 consecutive weeks of increasing weekly percent positivity |
Peak of outbreak | 15 days | WWS: Date of highest 7-day midpoint avg. IAV viral signal Clinical: Date of highest percent positivity |
Outbreak resolution | 17 days | WWS: 7 consecutive days of decreasing 7-day midpoint avg. IAV viral signal Clinical: 2 consecutive weeks of decreasing weekly percent positivity |
