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Seroconversion with plasma IgY and worm specific cut-off values. Contour-plots showing seroconversion for experimentally A. galli- or H. gallinarum-infected chickens using plasma samples and worm specific cut-off values for plasma samples (52.9 and 47.2 mU/ml for A. galli and H. gallinarum, respectively). Notice that the Y-axis is scaled to the duration of the H. gallinarum experiment (30 week). For the A. galli experiment, the duration was 28 weeks
