TABLE 1.
Virus growth potential in eggs
| Reassortant virus | HA titer | Growth (PFU/ml) |
|---|---|---|
| HG-PR8-PB1-wild type | 4,096 | 5.0 × 108 |
| HG-PR8-PB1-V43I | 2,048 | 1.0 × 108 |
| PB1-wt-A(H1N1)pdm09(6:2) | <2 | NTa |
| PB1-V43I-A(H1N1)pdm09(6:2) | <2 | NT |
a
Not tested.
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