Sample ID
|
Results of qRT-PCR (Ct Value)
|
Results of OSN-qRT-PCR(Ct Value)
|
Results of ddPCR (copies/ml)
|
Specimen type
|
Initial official reports by OSN-qRT-PCR
|
Judgment by N-PCR
|
Judgment by ddPCR
|
---|
ORF1ab
|
N
|
ORF1ab
|
N
|
ORF1ab
|
N
|
---|
1
|
27.20
|
26.94
|
15.00
|
16.68
|
129,415
|
1287.00
|
Throat swab
|
P
|
P
|
P
|
2
|
35.04
|
35.35
|
22.60
|
22.80
|
428.90
|
572.00
|
Throat swab
|
P
|
P
|
P
|
3
|
–
|
–
|
37.11
|
37.22
|
–
|
–
|
Throat swab
|
N
|
N
|
N
|
4
|
34.46
|
34.95
|
21.74
|
22.76
|
500.50
|
715.00
|
Throat swab
|
P
|
P
|
P
|
5
|
31.31
|
30.66
|
17.39
|
19.21
|
5148.00
|
10,224.50
|
Throat swab
|
P
|
P
|
P
|
6
|
28.02
|
27.38
|
14.65
|
15.25
|
74,360.0
|
364.45
|
Throat swab
|
P
|
P
|
P
|
7
|
–
|
–
|
38.21
|
–
|
–
|
–
|
Throat swab
|
N
|
N
|
N
|
8
|
32.61
|
32.70
|
18.17
|
19.96
|
2860.00
|
3503.50
|
Throat swab
|
P
|
P
|
P
|
9a
|
40.32
|
–
|
23.50
|
24.64
|
228.80
|
429.00
|
Throat swab
|
N
|
P
|
S
|
10
|
35.50
|
35.10
|
23.40
|
23.96
|
715.00
|
715.00
|
Throat swab
|
P
|
P
|
P
|
11
|
35.08
|
33.09
|
23.60
|
22.14
|
715.00
|
2145.00
|
Throat swab
|
P
|
P
|
P
|
12
|
26.58
|
26.76
|
12.52
|
13.95
|
215,930
|
4336.0
|
Throat swab
|
P
|
P
|
P
|
13a
|
40.83
|
–
|
28.75
|
26.19
|
157.30
|
228.80
|
Throat swab
|
N
|
P
|
N
|
14
|
34.00
|
33.96
|
20.84
|
23.19
|
1930.50
|
1716.00
|
Throat swab
|
P
|
P
|
P
|
15
|
34.37
|
34.38
|
21.70
|
23.10
|
2216.50
|
1144.00
|
Throat swab
|
P
|
P
|
P
|
16
|
–
|
–
|
–
|
38.56
|
–
|
–
|
Throat swab
|
N
|
N
|
N
|
17
|
34.33
|
34.27
|
22.08
|
20.28
|
1215.50
|
2502.50
|
Throat swab
|
P
|
P
|
P
|
18a
|
–
|
40.21
|
28.67
|
26.88
|
300.30
|
786.50
|
Throat swab
|
N
|
P
|
S
|
19
|
29.29
|
29.42
|
18.21
|
18.77
|
31,460
|
42,900
|
Sputum
|
P
|
P
|
P
|
20
|
–
|
–
|
36.11
|
–
|
572.00
|
1787.50
|
Sputum
|
N
|
N
|
P
|
21
|
29.89
|
29.25
|
18.30
|
19.36
|
13,799
|
30,530
|
Sputum
|
P
|
P
|
P
|
22
|
30.45
|
29.82
|
21.82
|
23.99
|
–
|
–
|
Sputum
|
P
|
P
|
N
|
23
|
26.79
|
26.94
|
15.78
|
17.50
|
23,595.0
|
14,657.50
|
Sputum
|
P
|
P
|
P
|
24a
|
40.81
|
–
|
35.98
|
36.21
|
–
|
1430.0
|
sputum
|
N
|
N
|
N
|
25a
|
40.21
|
–
|
27.88
|
25.63
|
643.50
|
1215.50
|
Sputum
|
N
|
P
|
P
|
26
|
31.10
|
30.32
|
22.56
|
21.94
|
9509.50
|
3789.50
|
Sputum
|
P
|
P
|
P
|
27
|
27.85
|
27.45
|
20.67
|
20.34
|
84,370.0
|
170,170.0
|
Sputum
|
P
|
P
|
P
|
28
|
29.89
|
28.22
|
22.10
|
21.31
|
643.50
|
–
|
Sputum
|
P
|
P
|
N
|
29a
|
–
|
40.22
|
16.62
|
17.08
|
715.0
|
715.0
|
Blood
|
N
|
P
|
P
|
30
|
–
|
–
|
–
|
37.90
|
–
|
–
|
Blood
|
N
|
N
|
N
|
31
|
35.08
|
34.73
|
21.57
|
22.83
|
500.50
|
715.00
|
Anal swab
|
P
|
P
|
P
|
32a
|
–
|
40.55
|
25.20
|
24.68
|
214.50
|
–
|
Anal swab
|
N
|
P
|
N
|
33a
|
–
|
40.06
|
24.00
|
25.68
|
–
|
250.25
|
Anal swab
|
N
|
P
|
N
|
34
|
–
|
–
|
26.66
|
27.22
|
307.45
|
–
|
Anal swab
|
N
|
P
|
N
|
- aOne or two of the target genes had a Ct value happen to fall in the gray zone (Ct value: 37–40), and samples were retested by qRT-PCR. At last, these samples were considered as negative with Ct value > 40 (both targets genes) by qRT-PCR
- P, positive; N, Negative; S, suspect; GGO, ground glass opacities image