Table 3.
Serology of animals after vaccination and after challenge.
| CFTa |
c-ELISAb |
|||||
|---|---|---|---|---|---|---|
| No vaccine | Modified | Standard | No vaccine | Modified | Standard | |
| Post vaccination | ||||||
| % +ve animals seroconverted | 0% | 17% | 63% | 0% | 14% | 17% |
| % +ve samplesc between 3 and 16 months | 0.53% | 0% | 0.74% | 1.03% | 9.4% | 15% |
| 3 month challenge | ||||||
| % +ve animals after challenge | 53% | 36% | 53% | 31% | 46% | 64% |
| 16 month challenge | ||||||
| % +ve animals after challenge | 50% | 53% | 33% | 100% | 100% | 87% |
a
Complement fixation test.
b
Competitive ELISA (Le Goff and Thiaucourt, 1998).
c
Each animal was tested on 29 occasions between 3 and 16 months after vaccination (see Section 2 for details).