system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
Why am I allergic to cats?


assistant
Allergies to cats are primarily caused by a single protein which is found on the skin and in the saliva. There are at least seven other cat proteins that may cause cat allergies in humans. A combination of these allergy producing proteins accumulate on the fur and skin of the cat during grooming.