Can dogs be allergic to cats?


Quick Answer

According to Allergic Pet, dogs are susceptible to cat allergies, which are caused by the allergen FelD1, a protein found in cat saliva. Cats are fastidious groomers, and the allergen sticks to their coats, dries and drops from the fur.

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Can dogs be allergic to cats?
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Full Answer

FelD1 is nearly weightless, and it tenaciously sticks to walls, furnishings, carpets and drapes. It is very persistent and often stays active in a home for up to 10 years. Similar to humans, a dog develops allergies when his immune system mistakenly interprets a common, harmless allergen as dangerous, leading to an extreme reaction. Airborne allergens are effectively controlled by HEPA air filters.

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