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. 2020 Jul 23;58(8):e00821-20. doi: 10.1128/JCM.00821-20

TABLE 6.

Same-sample comparison of five testing platforms for SARS-CoV-2

Sample IDa CT found using the following test platform(s) and primer or geneb :
UW IDT
 UW DiaSorin
 UW Cobas 6800
 LabCorp Seattle
Xpert Xpress Sars-CoV2
 Panther fusion SARS-CoV-2
N1 N2 S gene ORF1ab ORF1ab E gene E gene N2 Orf1ab/2ab
Neg 01 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 02 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 03 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 04 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 05 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 06 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 07 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 08 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 09 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 10 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 11 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 12 NDET NDET nd nd NDET NDET NDET NDET nd
Neg 13 NDET NDET nd nd NDET NDET NDET NDET nd
Pos 01 30.7 30.2 29.2 30 30.5 31.1 31.7 33.8 31
Pos 02 28.5 28.7 27.2 28 29.6 30.5 29.2 31.6 29.7
Pos 03 28.6 28.8 27.3 28.4 30.4 32.2 28.7 31.4 31.2
Pos 04 25.2 24.4 22.4 23.8 26.1 26.2 25.4 25.9 25.2
Pos 05* 35.4 35.6 NDET/NDET NDET/34.5 33.6 36.2 37.6 37.5 35
Pos 06 27.2 26.7 25 26.9 26.4 27.3 26.8 29.5 26.3
Pos 07 26.3 25.5 22.2 23.3 25.9 26.1 26 28.1 24.7
Pos 08 35.8 34.4 33.6 33 31.7 34.1 35.9 38.5 36.3
Pos 09 18 17.6 15.3 16.4 19.4 19.5 18 19.3 18.6
Pos 10 31.9 32.1 31.1 31.1 31.9 33.6 31.7 34.2 32.2
Pos 11 31.3 31.3 28.1 29.2 30.5 32 31.2 34.6 nd
Pos 12* 37.4 NDET NDET NDET NDET NDET NDET/42.6 42.7/NDET NDET
Pos 13 32.6 33.9 32.5 32.5 NDET 35.7 38.1 40 37.1
a

Thirteen negative (Neg) and thirteen positive (Pos) samples were tested. The asterisk indicates that the sample was from a known positive patient in the process of clearing virus.

b

NDET, not detected; nd, not done.