"Directly Associated" means:
the animal is maintained in a manner in which it has been stabled with, or is in direct or close physical contact with, an infected animal, its blood, or its bodily secretions; or
the animal is in the same environment as an infected animal where it is exposed to biting- or blood-sucking insects.
"Indirectly Associated" means an animal is maintained in a manner in which it is exposed to an infected animal through contact with items, including, but not limited to, veterinary instruments, hypodermic needles, feed and water containers, tack, and grooming supplies that have been in direct contact with an infected animal.
Ill. Admin. Code tit. 8, § 116.10