I don't think a deadly allergy to dogs exists as a condition on its own, you would probably also have a whole lot of terrible respiratory issues when exposed to

I don't think a deadly allergy to dogs exists as a condition on its own, you would probably also have a whole lot of terrible respiratory issues when exposed to a lot of other allergens. Someone with a deadly allergy to dogs will probably already require accommodations on the job that shield them from close interaction with people on its entirety.