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Efficiency of the virus concentration method
| Virus input (ng)a | Virus recovered (ng/10 ml) | Efficiency of recovery (%) | Concn factor |
|---|---|---|---|
| 12.8 | 2.04 | 16 | 32 |
| 64 | 8.32 | 13 | 26 |
| 128 | 3.52 | 2.75 | 5.5 |
The RNA concentration was calculated, as described in Materials and Methods, for the three different amounts of BEV (4.6 × 103, 2.3 × 104, and 4.6 × 104 TCID50) that were individually added to 2 liters of water.
