HELP. I need to know if anyone has had any real world experience with an FIV+ cat biting a non FIV cat. My FIV+ cat saw a cat outside and turned on his brother and bit him (redirected aggression). Anyhow, he drew blood from the capillaries on the tip of the ear. We tried to clean out the wound with water and alcohol. Is it a certainty that he will become FIV+ or is there a chance he'll stay negative? Per my vet I can't test for 5 weeks and then again in another 5 weeks. The waiting will kill me.