IL6 and anaphylaxis: The primary objective was to compare plasma concentrations of allergy biomarkers (MCT and histamine), inflammation mediators (IL-6,−10, and−18, CXCL8, CCL2, KC, CRP) and hyaluronan (a marker of endothelial glycocalyx shedding) between dogs with evidence of anaphylaxis after suspected insect exposure, dogs with other critical illness, and healthy controls.