CATS ARE KNOWN TO BE EXTREMELY FASTIDIOUS; WHY DO THEY CAUSE MORE ALLERGIC REACTIONS THAN OTHER PETS?
Cats are notoriously fastidious. They groom themselves repeatedly by licking their fur with their tongues. Such methodical self-grooming is not just a matter of personal hygiene, it is a reflex behavior in normal healthy cats. It is estimated that most normal, healthy cats spend from 30 to 50 percent of their waking time grooming themselves. And it is this natural behavioral instinct that makes cats more allergic than other pets. Each lick of their tongues during the grooming process deposits large amounts of saliva on the fur. The saliva dries on the hair; eventually it flakes off, becomes airborne and triggers the symptoms that characterize allergies to cats. The allergen in cat saliva and sebaceous gland secretions is one of the smallest of all known allergens and after being inhaled, penetrates very deeply into the lungs.