Some people develop allergies to the animals they work with or to their own pets.
If you're allergic to a species that you work with in your job, it can be quite debilitating. If you suffer from asthma, working with a species to which you are allergic can be a significant health risk. If you develop suspicious symptoms whenever you're exposed to a certain species, then you're very likely to have an animal allergy. Workers may be allergic to any animal species. The allergens are proteins that are excreted in the animals' saliva, urine, and from various glands associated with the skin.