Figure 6.

Inhibition IgE ELISA. Inhibition of IgE reactivity to cooked extracts by each mollusc extract is represented by the frequency of patients showing inhibition and the concentration of mollusc inhibitor required to achieve 50% inhibition of IgE reactivity: 0.16–0.8 μg mL^–1 (black), 0.9–4 μg mL^–1 (dark gray), 5–20 μg mL^–1 (light gray), 21–100 μg mL^–1 (spotted), or >100 μg mL^–1 (white). Patient sera used for each assay were those showing IgE reactivity to the coating extract by direct ELISA.