Thus, to evaluate the capacity of co-infection cell extracts to induce an immune response against PRV-1 and the cmyc epitope, an immunization trial was performed in rainbow trout (Oncorhynchus mykiss), selected due to fish availability at the time of the experiment and their established use in immunological studies for salmonids, supported by previous research [19,20]. The gene discussed is CD177; the disease is coinfection.