Rabies vaccine can be given after 24 hours, but the effect is worse than that of vaccination within 24 hours. It is generally recommended that the rabies vaccine be given within 24 hours of the injury, because rabies virus is a neurophilic virus, and in the early stage of infection, the virus is still in the bloodstream and wounds, and the antibodies produced by the rabies vaccine can neutralize the rabies virus, but in the later stage, it is possible for the rabies virus to enter the nerves, the spinal cord, and the brain, and it is difficult to achieve the effect of the early vaccination, so it is recommended that the vaccine be given at the earliest possible time. At present, rabies vaccination is the most effective way to prevent rabies, because once infected with rabies virus, the mortality rate is extremely high and cannot be saved, so it is best to prevent it through rabies vaccination. In order to reduce the rabies virus infection, usually after 24 hours can also be shot, there is a preventive effect, but the preventive effect is worse. If you are bitten or scratched by an animal such as a cat or dog, treat the wound and get a rabies vaccination within 24 hours without delay.