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Table 3 Intra- and inter-assay of 4 pooled sampling

From: Evaluation of pooling of samples for testing SARS-CoV- 2 for mass screening of COVID-19

4 – fold pooled sample Coefficient of Variation %
Intra assay
 High viral load positive samples 0–2%
 Medium viral load positive samples 0–2%
 Low viral load/ Weak positives 2–141%
Inter assay
 High viral load positive samples 1–2%
 Medium viral load positive samples 1–4%
 Low viral load/ Weak positives 1–173%