What is the major cat allergen?

A.  Fel d-1

B.  Der p-1

C.  Ler f-1

The correct answer is (A) – Fel d-1.  The part of the cat that makes people allergic is called Fel d-1. This is a protein secreted by the cat's sebaceous glands in the skin, and also by the salivary glands. This protein is sticky and easily adheres to walls, carpet, clothing, furniture, and bedding.

70% Correct.