Volume 27, Number 5—May 2021
Research
Serologic Screening of Severe Acute Respiratory Syndrome Coronavirus 2 Infection in Cats and Dogs during First Coronavirus Disease Wave, the Netherlands
Figure 3

Figure 3. Pairwise correlation analyses of reactivities acquired for serologic analyses of SARS-CoV-2–exposed cohort, the Netherlands. Pearson correlation coefficient was calculated to determine the correlation between the reactivities of RBD ELISA vs. S1 ELISA (A), RBD ELISA vs. VNT (B), S1 ELISA vs. VNT (C), and N ELISA vs. VNT (D). Cat serum samples (n = 44) were indicated in dots and the dog sample (n = 1) in triangle. Dotted lines show the positive cutoff levels. IC50, 50% inhibitory concentration; N, nucleocapsid; OD, optical density; RBD, receptor-binding domain; S1, spike protein subunit 1; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; VNT, virus neutralization titer.
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