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| Dose of native toxins | Immunization time interval | i.p. injection | s.c. injection | ||
|---|---|---|---|---|---|
| 15 μg | 25 μg | 15 μg | 25 μg | ||
| 2 × LD50 | І | Group 1 | Group 5 | Group 9 | Group 13 |
| Π | Group 2 | Group 6 | Group 10 | Group 14 | |
| 4 × LD50 | І | Group 3 | Group 7 | Group 11 | Group 15 |
| Π | Group 4 | Group 8 | Group 12 | Group 16 | |
