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Frequency of IFN-γ-producing cells responding to rTB10.4 and TB10.4 peptide mix in comparison to PPD as determined by ELISPOT on two PPD-positive BCG-vaccinated donorsa
| Antigen | Donor 1
|
Donor 2
|
||
|---|---|---|---|---|
| IFN-γ concn (pg/ml) | Spots/105 cells | IFN-γ concn (pg/ml) | Spots/105 cells | |
| PPD | 113,000 | 87 | 18,000 | 14 |
| rTB10.4 | 51,000 | 39 | 7,000 | 5 |
| TB10.4 mix | 41,000 | 32 | 6,000 | 5 |
No antigen is included as a negative control. Antigens were tested in concentrations of 10 μg/ml.
