On the other hand, it was presented that the concentration of the enzyme-labeled anti- E. coli O157:H7 IgY was 1:10, and the sensitivity was 106 CFU/mL by the direct ELISA.

• 直接ELISA检测大肠杆菌O157:H7的酶标IgY抗体工作浓度为1:10，对大肠杆菌O157:H7纯培养菌液检出限为106 CFU/mL；