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. 2020 May 15;105(4):784–786. doi: 10.1016/j.jhin.2020.05.017

Table I.

Samples collected and results

Sample number Sample type Location ORF1ab gene (Ct) IC: Ct Gene S (Ct) IC: Ct Gene N (Ct) IC: Ct
1 Landline COVID-19 diagnostic box NA
IC: 35.14
NA
IC: 36.46
NA
IC: 35.97
2 Barcode scanner COVID-19 diagnostic box NA
IC: 38.04
NA
IC: NA
NA
IC: 38.02
3 Blood culture box NA
IC: NA
NA
IC: 38.49
NA
IC: 36.93
4 Respiratory culture box NA
IC: 39.25
NA
IC: 39.78
NA
IC: 38.05
5 COVID-19 thermocycler NA
IC: 35.35
NA
IC: 34.30
NA
IC: 34.79
6 Mobile phone Laboratory NA
IC: NA
NA
IC: 35.96
A (38.80)
IC: 36.07
7 NA
IC: 34.86
NA
IC: 35.01
NA
IC: 34.14
8 Personal NA
IC: 35.46
NA
IC: 34.60
NA
IC: 35.00
9 NA
IC: 33.29
NA
IC: 33.82
NA
IC: 33.75
10 NA
IC: 34.45
NA
IC: 34.00
NA
IC: 34.48
11 NA
IC: 34.89
NA
IC: 35.51
NA
IC: 34.23
12 NA
IC: NA
NA
IC: NA
NA
IC: 35.88
13 NA
IC: 32.09
NA
IC: 36.38
NA
IC: 36.25
14 NA
IC: 31.49
NA
IC: 30.97
NA
IC: 31.25
15 Mouse COVID-19 diagnostic box A (38.98)
IC: 34.49
NA
IC: 34.82
A (37.55)
IC: 34.23
16 Blood culture box NA
IC: 34.56
NA
IC: 34.44
NA
IC: 34.65
17 Respiratory culture box NA
IC: 36.17
NA
IC: 38.10
NA
IC: 36.71
18 COVID-19 thermocycler NA
IC: 34.27
NA
IC: 34.98
A (38.33)
IC: 35.31
19 Keyboard COVID-19 diagnostic box NA
IC: 34.92
NA
IC: 36.89
NA
IC: 35.00
20 Blood culture box NA
IC: 32.62
NA
IC: NA
NA
IC: 31.85
21 Respiratory culture box NA
IC: 32.54
NA
IC: 32.51
NA
IC: 32.87
22 COVID-19 thermocycler NA
IC: 30.43
NA
IC: 29.82
A (30.32)
IC: 30.39
23 Environmental COVID-19 diagnostic box NA
IC: NA
NA
IC: NA
NA
IC: NA

A, amplified; NA, not amplified; IC, internal control; Ct, cycle threshold.