Table 2.

The physical symptoms of participants.

Physical symptoms	Children (7–12 years old) N = 55	Adolescents (13–18 years old) N = 222	Teachers (> 18 years old) N = 124	No. of cases (401)
Conscious fever	2 (3.6%)	14 (6.3%)	1 (0.8%)	17 (4.2%)
Fatigue	0	3 (1.4%)	3 (2.4%)	6 (1.5%)
Headache	0	3 (1.4%)	7 (5.6%)	10 (2.5%)
Body pain	0	7 (3.2%)	9 (7.3%)	16 (4.0%)
Cough	0	1 (0.5%)	0	1 (0.3%)
Expectoration	1 (1.8%)	1 (0.5%)	1 (0.8%)	3 (0.7%)
Gasp	0	1 (0.5%)	2 (1.6%)	3 (0.7%)
Pharyngeal xeransis	0	3 (1.4%)	6 (4.8%)	9 (2.2%)
Nasal congestion	4 (7.3%)	19 (8.6%)	9 (7.3%)	33 (8.2%)
Snotty	3 (5.4%)	23 (10.36%)	4 (3.2%)	30 (7.5%)
Anorexia	1 (1.8%)	4 (1.8%)	2 (1.6%)	7 (1.7%)
Abdominal distension	0	0	2 (1.6%)	2 (0.5%)
Dyspnea	0	2 (0.9%)	3 (2.4%)	5 (1.3%)
Insomnia	2 (3.6%)	36 (16.22%)	44 (35.48%)	82 (20.4%)