Table 2.
Symptom search shifts with minimum root mean squared errors (RMSE) (days).
| Turkey | Italy | Spain | France | UK | |
|---|---|---|---|---|---|
| Fever symptom | 18 | 15 | 14 | 15 | 23 |
| Cough | 20 | 21 | 14 | 14 | 24 |
| Dyspnea | 18 | 8 | 13 | 8 | 23 |
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