Table 3 Differences in clinical signs of vaccinated and unvaccinated moribund and vaccinated survivors Atlantic salmon single infected with P. salmonis.
Type of lesion or alteration | Presence of alterations | Number of fish | Proportion | X-squared UM − VM | X-squared VM − VS | df | p-valuea UM − VM | p-valuea VM − VS | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
UM | VM | VS | UM | VM | VS | |||||||
Skin congestion | No | 15 | 5 | 14 | 0.75 | 0.25 | 0.70 | 8.1 | 6.416 | 1 | 0.0044 | 0.01131 |
Yes | 5 | 15 | 6 | 0.25 | 0.75 | 0.30 | ||||||
Desquamation | No | 15 | 8 | 12 | 0.75 | 0.40 | 0.60 | 3.6829 | 0.9 | 1 | 0.0549 | 0.3428 |
Yes | 5 | 12 | 8 | 0.25 | 0.60 | 0.40 | ||||||
Skin ecchymosis | No | 20 | 20 | 18 | 1.00 | 1.00 | 0.90 | 0 | 0.52632 | 1 | 1 | 0.4682 |
Yes | 0 | 0 | 2 | 0.00 | 0.00 | 0.10 | ||||||
Gill paleness | No | 5 | 12 | 3 | 0.75 | 0.60 | 0.15 | 3.6829 | 5.1042 | 1 | 0.0549 | 0.02387 |
Yes | 15 | 8 | 17 | 0.25 | 0.40 | 0.85 | ||||||
Gill mucus | No | 2 | 2 | 15 | 0.10 | 0.10 | 0.75 | 0 | 14.731 | 1 | 1 | 0.000124 |
Yes | 18 | 18 | 5 | 0.90 | 0.90 | 0.25 | ||||||
Gill melanomacrophagues | No | 8 | 12 | 9 | 0.40 | 0.60 | 0.45 | 0.3428 | 0.401 | 1 | 0.3428 | 0.5266 |
Yes | 12 | 8 | 11 | 0.60 | 0.40 | 0.55 | ||||||
White hepatic nodules | No | 4 | 15 | 19 | 0.20 | 0.75 | 0.95 | 10.025 | 1.7647 | 1 | 0.0015 | 0.184 |
Yes | 16 | 5 | 1 | 0.80 | 0.25 | 0.05 | ||||||
Hepatomegaly | No | 20 | 20 | 19 | 1.00 | 1.00 | 0.95 | 0 | 0 | 1 | 1 | 1 |
Yes | 0 | 0 | 1 | 0.00 | 0.00 | 0.05 | ||||||
Spleen paleness | No | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0 | 0 | 1 | 1 | 1 |
Yes | 20 | 20 | 20 | 1.00 | 1.00 | 1.00 | ||||||
Splenomegaly | No | 0 | 0 | 1 | 0.00 | 0.00 | 0.05 | 0 | 0 | 1 | 1 | 1 |
Yes | 20 | 20 | 19 | 1.00 | 1.00 | 0.95 | ||||||
