Table 2 Challenge-vaccination trial program
Group | 1st Vaccination (5 days old) | 1st Vaccination Dose | 2nd Vaccination (10 days old) | 2st Vaccination Dose | Death rate (%) |
|---|---|---|---|---|---|
1 | H120+W93 | 0.03 ml1 | PBS | 0.2 ml | 35 |
2 | H120+W93 | 0.03 ml | H120+W93 | 0.03 ml | 15 |
3 | H120+W93 | 0.03 ml | YL6 | 0.2 ml | 0 |
4 | PBS | 0.03 ml | PBS | 0.2 ml | 100 |