Table 1. Serological results.
| Origin | Fish age | ID serum | SN titre | IF |
|---|---|---|---|---|
| Positive reference serum SJNNV | Adult | 24/ITT12 n. 14 | 1:320 | 1:100 |
| Farm 1 | Broodstock | 14ITT/464.3 | 1:80 | Negative |
| Farm 1 | Broodstock | 14ITT/464.5 | 1:40 | Negative |
| Farm 1 | Broodstock | 14ITT/464.8 | 1:80 | Negative |
| Farm 1 | Broodstock | 14ITT/492.8 | 1:40 | Negative |
| Farm 1 | Broodstock | 15ITT/42.18 | 1:80 | Negative |
| Farm 1 | Broodstock | 15ITT/46.19 | 1:40 | Negative |
| Farm 1 | Broodstock | 15ITT/46.45 | 1:40 | Negative |
Titers (expressed as limit dilution) of broodstock sea bream sera samples from farm 1were evaluated with serum neutralization (SN) and Immunofluorescence (IF).