Figure 2From: Quantitative anti-PA IgG ELISA; assessment and comparability with the anthrax toxin neutralization assay in goatsAnti-PA IgG 4-parameter logistic curve model derived for a quantitative indirect ELISA using the Gen 5 software. Data were derived from a reference standard consisting of affinity-purified caprine polyclonal anti-anthrax PA83 IgG fraction with dilutions from 5–0.0098 μg/ml.Back to article page