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. 2020 Nov 30;10:553837. doi: 10.3389/fcimb.2020.553837

Table 1.

Limit of detection.

50 ng/ml* 100 ng/ml* 750 TCID50/ml** 1000 TCID50/ml**
Lot 1 Lot 2 Lot 3 Lot 1 Lot 2 Lot 3 Lot 1 Lot 2 Lot 3 Lot 1 Lot 2 Lot 3
No. tested 20 20 20 20 20 20 20 20 20 20 20 20
Positive results 18 18 16 20 20 20 15 20 16 20 20 20
Positive ratio 88.33% 100% 85.00% 100%

*tests used with recombinant protein-N of SARS-CoV-2; **tests used with culture fluid of SARS-CoV-2. The results were detected by a Savant-100 Fluorescence immunochromatographic analyzer.