2.9. Induction of anti–anti-idiotype antibody (Ab3) response
Chicken were immunized subcutaneously with 100 g of Racotumomab vaccine in the days 0, 7 and 21. Blood extractions were done before and one week after the last immunization (day 28).The presence of anti-Racotumomab antibodies in chicken sera was determined in a solid-phase ELISA Polystyrene Maxisorp micro titer plates (Nunc, Roskilde, Denmark) were coated with 50 L of a solution of 10 g/ml of mAb-Racotumomab in carbonate buffer pH 9.6and incubated overnight at 4◦C.