BMJ Group Oct 15 2024 There is no evidence for the commonly held belief that nut allergens can be spread through aircraft ventilation systems, say allergy and aviation medicine specialists in an evidence review published in the  Archives of Disease in Childhood. Allergen residues on surfaces, such as tray tables, and seat-back video screens, pose the main risk-;a risk that is likely heightened by the fast turnaround times deployed by many low-cost carriers, they suggest. And allergic reactions