Under normal circumstances, no injection is required if the skin is bitten by a kitten, because kittens generally do not carry rabies virus, and the rabies virus is transmitted through saliva and blood, so if the skin is bitten by a kitten without bleeding, it is not necessary. It can get infected, just clean the wound with soap and water. If the female cat does not carry rabies virus, then the kittens will basically not carry rabies virus.