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Transformation frequencies of umbilical cord blood lymphocytes after infection with EBV supernatants
| EBV supernatant | No. of positive wells/no. of wells plated | Immortalization efficiency (%) |
|---|---|---|
| Wild type | 64/64 | 100 |
| BFRF1 negative | 3/64 | 4.68 |
| BFRF1 complemented | 60/64 | 93.7 |
