| Sample no | Sampling at start of program (T0) | Sampling at end of program (T60) | ||||
| direct (qual.) | 1:10 diluted (qual.) | quan. (ID50) | direct (qual.) | 1:10 diluted (qual.) | quan. (ID50) | |
| 1 | toxic | + | n.e. | + | + | ≥1.5 |
| 2 | + | + | ≥1.5 | + | + | ≥1.5 |