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Baseline characteristics of the study participants (n=330)
| Demography | |
|---|---|
| Age, yr (mean±SD) | 34.1±12.6 |
| Sex | |
| Male | 231 (70.0) |
| Female | 99 (30.0) |
| Ratio (female/male) | 0.42 |
| Symptomatic | 204 (61.8) |
| Asymptomatic | 126 (38.1) |
| Duration of illness (n=179) | |
| ≤5 days | 192 (58.1) |
| >5 days | 12 (3.6) |
| Clinical features | |
| Fever | 104 (31.5) |
| Cough | 84 (25.4) |
| Sore throat | 78 (23.6) |
| Fatigue/malaise | 39 (11.8) |
| Headache | 11 (3.3) |
| Runny nose | 11 (3.3) |
Values shown as n (%)
