Table S2. The preservation of the severity of symptoms between the latest infection and the previous infection.
| Manifestation |
Milder than the previous infection, n (%) |
Similarity, n (%) |
More severe than the previous infection, n (%) |
| Fever | 18,251 (82.3) | 2,409 (10.9) | 1,529 (6.9) |
| Fatigue | 16,107 (72.6) | 4,360 (19.7) | 1,722 (7.8) |
| Headache | 14,809 (66.7) | 4,582 (20.7) | 2,798 (12.6) |
| Muscle and joint pain | 15,326 (69.1) | 4,486 (20.2) | 2,377 (10.7) |
| Sore throat | 13,984 (63.0) | 4,398 (19.8) | 3,807 (17.2) |
| Nasal congestion | 13,106 (59.1) | 5,328 (24.0) | 3,755 (16.9) |
| Runny nose | 12,690 (57.2) | 5,298 (23.9) | 4,201 (18.9) |
| Cough | 15,002 (67.6) | 3,993 (18.0) | 3,194 (14.4) |
| Expectoration | 14,584 (65.7) | 4,670 (21.1) | 2,935 (13.2) |
| Changes in taste and smell | 12,053 (54.3) | 6,806 (30.7) | 3,330 (15.0) |
| Diarrhea | 9,634 (43.4) | 7,853 (35.4) | 4,702 (21.2) |
| Vomit | 9,829 (44.3) | 8,643 (39.0) | 3,717 (16.8) |
| Dyspnea and shortness of breath | 10,912 (49.2) | 7,777 (35.1) | 3,500 (15.8) |