Table 2.
Percentage of CD4+ and CD8+ lymphocytes in mice infected with T. cruzi I strains.
| Strain (infection phase) | Parasites | CD4+ | CD8+ |
|---|---|---|---|
| Ninoa (acute) | PBS | 28.8 ± 1 | 11.8 ± 0.1 |
| 1 × 104 | 15.1 ± 2.6* | 11.8 ± 2.6 | |
| 1 × 105 | 18 ± 2.5* | 16.3 ± 1.9 | |
| Ninoa (chronic) | PBS | 25.8 ± 8 | 9.9 ± 4.1 |
| 1 × 104 | 30.3 ± 11.6 | 23.2 ± 7.8* | |
| 1 × 105 | 25.3 ± 7.4 | 18 ± 8.7* | |
| Qro (acute) | PBS | 24 ± 3.3 | 10.5 ± 4.6 |
| 1 × 104 | 17 ± 3.3* | 11.7 ± 4.3 | |
| 1 × 105 | 14 ± 2.5* | 10 ± 6 | |
Mean ± standard deviation of three independent assays. Statistical differences between parasited and control mice are indicated (*P < .05). Control mice were inoculated with phosphate buffer saline (PBS).