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Distribution of cELISA results by percent inhibition. Samples with discrepant results that were found to be positive by IFA have an additional mark: plus sign, the sample was IFA positive, in agreement with the cELISA; cross-hatching, the sample was IFA positive, in agreement with CFT; white blocks, the samples were cELISA positive irrespective of the CFT results; shaded blocks, the samples were cELISA negative, irrespective of the CFT results.
