Table 1. Viable Virus Concentrations for the Three Countries for May 3, 2020, Assuming a Spill Occurreda.
| country | ΨI = 0.1%, median DF (copies L–1) | *I = 1%, median DF (copies L–1) | $I = 10%, median DF (copies L–1) | &I = 10%, low DF (copies L–1) | 100 mL dose for case $ and total range (copies) | 24 h survival (%) | 48 h survival (%) |
|---|---|---|---|---|---|---|---|
| Spain (SPA) | 63 | 632 | 6325 | 6325 | 633 (63Ψ–633&) | 67 (66–68) | 45 (44–47) |
| U.K. (GBR) | 47 | 468 | 4682 | 30792 | 468 (47Ψ–3080&) | 72 (70–74) | 52 (49–55) |
| Morocco (MAR) | 46 | 459 | 4595 | 25255 | 459 (46Ψ–2526&) | 38 (38–39) | 15 (14–15) |
a
Median dilutions (DFs) along with lowΨ, middle*, and high$ viable:unviable viral ratios (I) are given to provide a reasonable range of concentrations within the first 24 h. &Low DF (lower 25th percentile) and high I results enable the upper range of concentrations to be estimated. Viral survival rates after 24 and 48 h show how the viable viral concentrations decrease due to temperature-driven die-off. Survival is for the median lake temperature, and the ranges are the 25th and 75th temperature percentiles.