Clinical features

Global population

N = 556*

1^st wave

N = 239*

2^nd wave

N = 216*

3^rd wave

N = 101*

Vital signs

Temperature (˚C)

36.70 ± 0.73

36.77 ± 0.71

36.52 ± 0.67

36.85 ± 0.83

High temperature

47 (8.8%)

22 (9.2%)

9 (4.5%)

16 (16%)

SaO₂ (%)

93 ± 7

94 ± 6

92 ± 6

90 ± 10

SaO₂ < 90%

125 (22.4%)

35 (14.6%)

52 (24.1%)

38 (37.6%)

Symptoms

Fatigue

321 (58%)

141 (59%)

117 (54%)

63 (62%)

Cough

319 (57%)

139 (58%)

117 (54%)

63 (62%)

Fever

289 (52%)

133 (55.6%)

92 (42.6%)

64 (63.4%)

Arthromyalgia

266 (48%)

110 (46%)

113 (52%)

43 (43%)

Headaches

233 (42%)

115 (48%)

74 (34%)

44 (44%)

Dyspnea

176 (32%)

73 (31%)

67 (31%)

36 (36%)

Ageusia

84 (15.1%)

43 (17.9%)

28 (12.9%)

13 (12.9%)

Anosmia

94 (16.8%)

45 (18.8%)

33 (15.2%)

16 (15.8%)

Sore throat

66 (12%)

38 (16%)

21 (9.7%)

7 (6.9%)

Rhinorrhea

64 (12%)

31 (13%)

24 (11%)

9 (8.9%)