Fig. 2From: Prime and boost aerosol exposure via fog machine or shisha smoke followed by cinnamon hypersensitivity and anaphylaxis to spiced foodSkin prick test analysis. Wheal and flare reactions (mm) of 17 healthy volunteers with self-reported exposition to disco smoke or shisha and the patient (n = 12) or volunteers without exposition (n = 6) are depicted with a 3 % cinnamon aldehyde in 0.9%NaCl, b 1 % cinnamon aldehyde in Vaseline®, and c 1 % cinnamon alcohol in Vaseline®. Groups were compared using Mann-Whitney U test. * p < 0.05, ** p < 0.01Back to article page