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. 2020 Jun 8;40(1):183–189. doi: 10.1080/01652176.2020.1773006

Figure 4.

Figure 4.

Humoral immune response in pigs immunized with PEDV-sFc. Pigs were immunized with 106 TCID50 of inactivated PEDV propagated in Vero or Vero-sFc cells. Serum samples were harvested at farrowing. Colostrum samples were collected on the same day of delivery. (A) The production of IgG against PEDV was detected by ELISA. (B) Serum neutralizing activity was determined by SN test as described in materials and methods. Error bars present SD from the mean. Statistical significance was assessed by student’s t-test. *, p < 0.05; ***, p < 0.001; ns, not significant.