Is this a real thing - cat allergy from carpet

[John Collins]

Can someone be allergic to cats such that they can sense when a shaggy carpet that was only 6 months old when they moved in had cats on it? This person is not allergic to dogs.

I spoke with the old owner - said his daughter had a cat but she was working and living 40 min away when they upgraded carpet so the cat has only been home for weekends.

I'll remove the carpet but only if this is legitimate and not a ploy.