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Determination of LD50 of Stx1 and Stx2 for rabbits after an intravenous injection
| Stx | Dose (ng/kg) | No. of rabbits treated | No. of deaths | LD50 (ng/kg) |
|---|---|---|---|---|
| Stx1 | 313 | 5 | 5 | 20 |
| 156 | 5 | 4 | ||
| 78 | 5 | 4 | ||
| 39 | 5 | 3 | ||
| 19 | 5 | 2 | ||
| 9.8 | 5 | 0 | ||
| 4.9 | 5 | 2 | ||
| 2.4 | 5 | 0 | ||
| Stx2 | 2,500 | 5 | 5 | 884a |
| 1,250 | 5 | 3 | ||
| 625 | 5 | 2 | ||
| 313 | 5 | 0 |
Probit method. Potency ratio, 43.8.
