Fig. 4

Reactivity testing of IgY and IgG antibodies with Sbi protein a. blot treated with biotin labeled anti-Sbi IgY antibodies, b. blot treated with biotin-labeled unimmunized IgY, c. blot treated with biotin labeled anti-Sbi IgG, d. Blot treated with biotin labeled unimmunized IgG. From Fig. 5b, it was deduced that unimmunized IgY does not bind Sbi or SpA proteins