Can people who are allergic to cats have guinea pigs?

People who are allergic to cats may or may not be allergic to guinea pigs. Cats and guinea pigs belong to different families and orders, and thus produce different allergens. Therefore, someone with a cat allergy may or may not be affected by a guinea pig.

It's important for individuals with allergies to undergo allergy testing to determine what specific allergens trigger their reactions. If cat allergy is confirmed, it's still advisable to interact with a guinea pig in a controlled environment to identify any potential allergic reactions before making the commitment of bringing one home.