If a person has been vaccinated against rabies and it is within a year of the vaccination, and the scratch bleeds after being scratched by a cat, there is no need to repeat the rabies vaccination. However, if the person has been vaccinated for a long time, more than a year or has been 3-5 years, and is then scratched by a cat that has not been vaccinated against rabies, the first thing to do is to clean the wound, disinfect the bandage, and to just go to the nearest vaccination station for a booster shot. After the booster shot, the body’s antibodies will quickly rise to a higher concentration and will be able to defend against rabies virus infection. Generally, another booster shot can be maintained for about three years. If you get scratched by a dog or cat again, you can keep it for about three years after the second booster shot.