Fig 6. Serum antibody production in vaccinated fish.
Sera were collected from turbot vaccinated with or without (control) pCN247 or pCN523. The sera were diluted in different folds, and serum antibodies against rP247 and rP523 were determined by ELISA. Data are presented as means±SE (N = 3). N, the number of times the assay was performed. At each dilution, significances between vaccinated fish and control fish are indicated by asterisk. **P < 0.01.