Experimental Natural P value
N-PARTICIPANTS 39 83
Age 29.9 (7.0) 22.3 (7.6) 6E-7
Range
20.0 - 45.0
15.0 - 63.0
N-Female (%) 11 (28.2) 47 (56.6) 0.003
N-participants asymptomatic (%) 5 (12.8) 0 (0.0) 0.003
N-participants with fever > 37.9oC (%) 6 (15.4) 36 (43.4) 0.002
N-BREATH COLLECTION VISITS 84 146
Temperature in C 36.6 (0.6) 37.3 (0.6) 4E-16
N-Missing observations
2
1
Range
35.3 - 38.4
36.3 - 39.7
Upper respiratory symptom score 1.4 (1.9) 7.0 (3.0) E-22
Range
0.0 - 6.0
0.0 - 15.0
Lower respiratory symptom score 0.2 (0.4) 3.2 (1.5) E-22
Range
0.0 - 1.0
0.0 - 6.0
Systemic symptom score 0.7 (1.2) 5.4 (2.4) E-22
Range
0.0 - 5.0
0.0 - 9.0
Total symptom score 2.2 (2.9) 15.5 (5.5) E-22
Range
0.0 - 11.0
4.0 - 29.0
Cough symptom score 0.2 (0.4) 2.2 (0.8) E-22
Range
0.0 - 1.0
0.0 - 3.0
Cough count§ 1.7 (4.8) 26.7 (32.5) 3E-11
Range
0.0 - 35.0
0.0 - 265.0
Nasopharyngeal swab Ct value 29.9 (6.9) 23.1 (6.1) E-7
N-Missing observations
2
0
Range
17.0 – 40.0
13.1 – 40.0
Mean (SD) unless indicated (N=number). Symptom scores, body temperature, and observed cough counts are reported per breath collection visit, with multiple visits per person. Never fever >37.9 oC or any self-reported symptom. Cough symptom score is part of composite lower respiratory score. §Cough counts after imputation for five experimental and three natural case observations. Swabs with no detection were coded as having Ct value = 40. Mean (SD) unless indicated (N=number). Symptom scores, body temperature, and observed cough counts are reported per breath collection visit, with multiple visits per person. Never fever >37.9 oC or any self-reported symptom. Cough symptom score is part of composite lower respiratory score. §Cough counts after imputation for five experimental and three natural case observations. Swabs with no detection were coded as having Ct value = 40. Mean (SD) unless indicated (N=number). Symptom scores, body temperature, and observed cough counts are reported per breath collection visit, with multiple visits per person. Never fever >37.9 oC or any self-reported symptom. Cough symptom score is part of composite lower respiratory score. §Cough counts after imputation for five experimental and three natural case observations. Swabs with no detection were coded as having Ct value = 40. Mean (SD) unless indicated (N=number). Symptom scores, body temperature, and observed cough counts are reported per breath collection visit, with multiple visits per person. Never fever >37.9 oC or any self-reported symptom. Cough symptom score is part of composite lower respiratory score. §Cough counts after imputation for five experimental and three natural case observations. Swabs with no detection were coded as having Ct value = 40.