Table 1 Percent reduction (%) of workload for different extent of sample pooling (2–8 samples/pool) based on estimated infection rates (1–20%)
Estimated infection rate (%) | Number of samples per pool | ||||||
|---|---|---|---|---|---|---|---|
2 | 3 | 4 | 5 | 6 | 7 | 8 | |
1 | 47.80 | 63.09 | 70.24 | 74.15 | 75.93 | 77.77 | 78.54 |
2 | 45.71 | 59.68 | 65.71 | 68.57 | 69.37 | 70.20 | 70.00 |
3 | 43.72 | 56.43 | 61.40 | 63.26 | 63.10 | 62.99 | 61.86 |
4 | 41.82 | 53.33 | 57.27 | 58.18 | 57.12 | 56.10 | 54.09 |
5 | 40.00 | 50.37 | 53.33 | 53.33 | 51.41 | 49.52 | 46.67 |
6 | 38.26 | 47.54 | 49.57 | 48.70 | 45.94 | 43.23 | 39.57 |
7 | 36.60 | 44.82 | 45.96 | 44.26 | 40.71 | 37.20 | 32.77 |
8 | 35.00 | 42.22 | 42.50 | 40.00 | 35.69 | 31.43 | 26.25 |
9 | 33.47 | 39.73 | 39.18 | 35.92 | 30.88 | 25.89 | 20.00 |
10 | 32.00 | 37.33 | 36.00 | 32.00 | 26.27 | 20.57 | 14.00 |
11 | 30.59 | 35.03 | 32.94 | 28.24 | 21.83 | 15.46 | 8.24 |
12 | 29.23 | 32.82 | 30.00 | 24.62 | 17.56 | 10.55 | 2.69 |
13 | 27.92 | 30.69 | 27.17 | 21.13 | 13.46 | 5.82 | -2.64 |
14 | 26.67 | 28.64 | 24.44 | 17.78 | 9.51 | 1.27 | -7.78 |
15 | 25.45 | 26.67 | 21.82 | 14.55 | 5.70 | -3.12 | -12.73 |
16 | 24.29 | 24.76 | 19.29 | 11.43 | 2.02 | -7.35 | -17.50 |
17 | 23.16 | 22.92 | 16.84 | 8.42 | -1.52 | -11.43 | -22.11 |
18 | 22.07 | 21.15 | 14.48 | 5.52 | -4.94 | -15.37 | -26.55 |
19 | 21.02 | 19.44 | 12.20 | 2.71 | -8.25 | -19.18 | -30.85 |
20 | 20.00 | 17.78 | 10.00 | 0.00 | -11.44 | -22.86 | -35.00 |