Wikipedia says:
Worldwide, the vast majority of human rabies cases (approximately 97%) come from dog bites.
In several countries, including the United Kingdom and Japan, rabies carried by animals that live on the ground has been eradicated entirely. Concerns exist about airborne and mixed-habitat animals including bats.
Treatment after exposure, known as post-exposure prophylaxis (PEP), is highly successful in preventing the disease if administered promptly, generally within ten days of infection.[1] Thoroughly washing the wound as soon as possible with soap and water for approximately five minutes is very effective at reducing the number of viral particles. If available, a virucidal antiseptic such as povidone-iodine, iodine tincture, aqueous iodine solution or alcohol (ethanol) should be applied after washing...Exposed mucous membranes such as eyes, nose or mouth should be flushed well with water.[19]
Rabies was once rare in the United States outside the Southern states[citation needed], but as of 2006, raccoons in the mid-Atlantic and northeast United States had been suffering from a rabies epidemic since the 1970s, which was moving westwards into Ohio.[51] In the midwestern United States, skunks are the primary carriers of rabies, comprising 134 of the 237 documented non-human cases in 1996.
If you alert the authorities you may very well have all the chicken put down because they are much more likely to have been exposed to the kitten. As I said earlier We had friends that had a bat in the house and because they couldn't prove that the bat hadn't bitten the cat, the CDC made them put their 15 year old cat down. Most kittens are the product of domestic cats that have been dumped. It is a rather unlikely scenario. IMHO