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Fig. 4 | BMC Veterinary Research

Fig. 4

From: Establishment of enzyme-linked immunosorbent assays based on recombinant S1 and its truncated proteins for detection of PEDV IgA antibody

Fig. 4

Optimization of coating antigen concentration and serum dilution of truncated S1 ELISA. A S1T1 ELISA was optimized by different antigen coating concentration (80, 40, 20, 10 and 5 μg/mL) and serum dilution (1:50, 1:100, 1:200 and 1:400); B S1T2 ELISA was optimized by different antigen coating concentration (20, 15, 10, 5 and 2.5 μg/mL) and serum dilution (1:50, 1:100, 1:200 and 1:400); C. S1T3 ELISA was optimized by different antigen coating concentration (1:50, 1:100, 1:200 and 1:400 μg/mL) and serum dilution (1:50, 1:100, 1:200 and 1:400)

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