Fig. 3
From: Identification of canine norovirus in dogs in South Korea
Antibody titers in dog serum samples. Positive serum and negative control serum were diluted from 1:50 to 1:13200 used in the ELISA assay. The corrected OD450 was obtained by subtracting the background signal from the VLP coated well OD450 value. The positive threshold was determined by calculating the mean OD450 of buffer coated wells with the highest serum dilution, plus 3 standard deviations