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Canine chimeric ELISA. Panel A: Boxplots of net absorbance (expressed as percentage of reactivity of the positive reference serum) of parasitologically negative (group 1) and positive (group 2) dogs and of IFAT-negative (group 3) and IFAT-positive (group 4) dogs. Panel B: Boxplots of net absorbance of 103 positive dogs grouped by their reciprocal IFAT titers.
