Table 6.
Secondary viral shedding: linear regression results for effect of transformed virulence score and vaccine treatment on the second viral shedding rate (VCN/mg dust).
| Estimate | Std. Error | t value | Pr(> |t|) | |
|---|---|---|---|---|
| Intercept | -3.24 × 107 | 1.35 × 107 | -0.24 | 0.03 |
| Virulence Score | 9.79 × 107 | 2.19 × 107 | 4.47 | < 0.01 |
| VaccHVT | 8.51 × 106 | 1.91 × 107 | 0.45 | 0.66 |
| VaccBiv | 1.70 × 107 | 1.91 × 107 | 0.89 | 0.39 |
| Virulence Score:VaccBiv | -5.73 × 107 | 3.19 × 107 | -0.19 | 0.09 |
| Virulence Score:VaccHVT | -2.37 × 107 | 3.10 × 107 | -0.77 | 0.46 |
Adjusted R2 = 0.74, p < 0.01.