CD63 and anaphylaxis: When these parameters were analyzed independently in each severity group and for each BAT parameter (%CD63+ and %CD203chigh), we found that although strong positive correlations between CD-sens and AUC were found (r > 0.7, p < 0.01–0.0001), except for the anaphylaxis group in %CD203chigh parameters (Figure 6E–M), AUC and CD-Sens parameters did not distinguish clinical severity groups.