Table 3.
Mean fraction of unreported infections with different cutoffs.
| (a) 8 day reporting lag | ||||||||
| date | ||||||||
| Feb 1 | Feb 5 | Feb 10 | Feb 15 | Feb 20 | Feb 25 | Feb 29 | ||
| date | Mar 9 | 13.71% | 13.75% | 13.73% | 13.54% | 13.35% | 13.05% | 12.48% |
| Mar 10 | 9.35% | 9.38% | 9.37% | 9.24% | 9.11% | 8.92% | 8.61% | |
| Mar 11 | 8.76% | 8.79% | 8.78% | 8.66% | 8.55% | 8.40% | 8.17% | |
| Mar 12 | 3.83% | 3.85% | 3.84% | 3.78% | 3.72% | 3.64% | 3.53% | |
| Mar 13 | 4.44% | 4.46% | 4.46% | 4.38% | 4.31% | 4.24% | 4.13% | |
| Mar 14 | 5.58% | 5.61% | 5.60% | 5.51% | 5.43% | 5.34% | 5.22% | |
| Mar 15 | 4.94% | 4.97% | 4.96% | 4.88% | 4.81% | 4.74% | 4.64% | |
| Mar 16 | 7.96% | 8.00% | 7.99% | 7.86% | 7.76% | 7.65% | 7.52% | |
| Mar 17 | 11.71% | 11.78% | 11.76% | 11.57% | 11.43% | 11.29% | 11.11% | |
| Mar 18 | 20.63% | 20.74% | 20.72% | 20.40% | 20.17% | 19.94% | 19.66% | |
| Mar 19 | 44.76% | 44.93% | 44.90% | 44.42% | 44.07% | 43.74% | 43.33% | |
| (b) 5 day reporting lag | ||||||||
| date | ||||||||
| Feb 1 | Feb 5 | Feb 10 | Feb 15 | Feb 20 | Feb 25 | Feb 29 | ||
| date | Mar 6 | 9.64% | 9.65% | 9.67% | 9.61% | 9.53% | 9.40% | 9.05% |
| Mar 7 | 5.22% | 5.23% | 5.24% | 5.20% | 5.16% | 5.09% | 4.94% | |
| Mar 8 | 3.05% | 3.05% | 3.06% | 3.03% | 3.01% | 2.98% | 2.90% | |
| Mar 9 | 1.59% | 1.59% | 1.60% | 1.59% | 1.58% | 1.56% | 1.53% | |
| Mar 10 | 1.66% | 1.66% | 1.67% | 1.66% | 1.65% | 1.63% | 1.60% | |
| Mar 11 | 2.26% | 2.26% | 2.27% | 2.25% | 2.24% | 2.22% | 2.19% | |
| Mar 12 | 2.01% | 2.02% | 2.02% | 2.01% | 1.99% | 1.97% | 1.94% | |
| Mar 13 | 3.05% | 3.06% | 3.07% | 3.04% | 3.02% | 2.99% | 2.95% | |
| Mar 14 | 4.18% | 4.19% | 4.21% | 4.17% | 4.14% | 4.11% | 4.06% | |
| Mar 15 | 3.62% | 3.63% | 3.64% | 3.61% | 3.59% | 3.56% | 3.52% | |
| Mar 16 | 4.73% | 4.74% | 4.76% | 4.72% | 4.69% | 4.66% | 4.62% | |
| Mar 17 | 6.67% | 6.68% | 6.71% | 6.66% | 6.62% | 6.58% | 6.52% | |
| Mar 18 | 10.75% | 10.77% | 10.81% | 10.73% | 10.67% | 10.61% | 10.53% | |
| Mar 19 | 24.61% | 24.63% | 24.70% | 24.58% | 24.48% | 24.40% | 24.28% | |
This table displays value for different dates for both and . We vary across the month of February, and across early March. Very early March and February dates for are not available since Iceland confirmed infections only begin February 28. Travel data is assumed uniform across days throughout and is not weighted as or change. We include Italy, Spain, Germany, and the United Kingdom as epicenters as well as China.