Table A1.
Survival rate in different groups of experimental SPF chicken following challenge with virulent Newcastle disease virus.
| Group $ (n = 10 or 11/Group) | Survived | Dead | Protection (%) |
|---|---|---|---|
| A | 0 | 10 * | 0 |
| B | 7 | 3 | 80 |
| C | 8 | 2 | 70 |
| D | 6 | 4 | 60 |
| E | 10 | 0 | 100 |
| F (11) | 2 | 9 | 18.18 |
| G (11) | 0 | 11 | 0 |
* All the birds died within 7 days post-challenge. $ Group A: control; group B: commercial NDV vaccine; group C: inactivated NDV vaccine; group D: inactivated NDV vaccine with LPS; group E: inactivated NDV vaccine with R-848; group F: inactivated NDV vaccine with LPS (25 µg) + R-848 (25 µg) and group G: inactivated NDV vaccine with LPS (50 µg) + R-848 (50 µg).