Results The optinal dilutions of anti-SC was 1:400, The optimal dilutions of streptavidin-HRP-anti-SIgA was 1:800, the optional inclusion reagent was 0.5% fetus serum.

• 结果包被抗体浓度1:400，酶标抗体浓度为1:800，最适封闭条件为0.；5%25新生胎牛血清。