Tests have found that the most common feline allergen (Fel d 1) is present on 100% of aeroplane seats. Research published by Dr Matthias Möhrenschlager in the journal of the European Journal of Allergy and Clinical Immunology has shown that amounts of the allergen detected are high enough to trigger serious allergic reactions in sensitive people. The consequences of suffering an allergic reaction at high altitude and away from emergency care could be life-threatening, and since an estimated 10% of people are allergic to cats and other animals, it is advisable to make sure you carry your EpiPen on flights if you are allergic.

Feline allergens are present because many pet owners carry traces on their clothes, and in the US cats are also allowed inside the aircraft. In spite of this, there are very few recorded reports of serious in-flight allergic reactions.

Source: MSNBC

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