Table 2.
Three pooled tests run at the Hadassah Medical Centre
| Batch | No. of samples | No. of pools | No. of positive pools | Ct of positive pools | No. of positive individual samples in the positive pools | Ct of positive individual samples | No. of total tests | No. of tests saved, compared to single sample tests (%) |
|---|---|---|---|---|---|---|---|---|
| 1 | 720 | 90 | 1 | 21.8 | 1 | 19.4 | 98 | 622 (86.4%) |
| 2 | 720 | 90 | 0 | — | — | — | 90 | 630 (87.5%) |
| 3 | 728 | 91 | 3 positives, 1 indeterminate | 25.39 | 2 | 22.05, 28.72 | 123 | 605 (83.1%) |
| 37.44 | 1 | 37.67a | ||||||
| 35.26 | 1 | 34.66 | ||||||
| 38.67 indeterminate | 0 | 38.24 (determined as negative) |
Ct, cycle threshold.
a
According to Hadassah Medical Centre's protocol for indeterminate values, reverse transcription-PCR was repeated with a different kit, and eventually was determined as positive.