Typically, trying to rule out rabies 100% can be considered in terms of ruling out the injured animal as carrying the rabies virus and ruling out the bitten person as being infected with the rabies virus. Rabies is usually spread by infected animals, which are the source of infection, and if the animal is 100% certain to be free of rabies, it is certain that the human body is also free of rabies. Brain tissue can be taken from the animal and tested for the presence of rabies virus (not recommended, this method is difficult to achieve) or the animal can be observed for abnormalities through a 10-day observation method (this method is only applicable to immunized domesticated animals, and it can be used to approximate a 100% exclusion of the possibility of rabies). Human beings can be checked to see if the serum rabies virus antibody titer is high enough; antibodies of sufficient titer can neutralize the virus and prevent infection. Antibody levels can be raised through rabies vaccination and anti-rabies immunoglobulin. If you are scratched or bitten by an animal that can carry the rabies virus, it is recommended that you consult a regular hospital in a timely manner for rabies vaccination and rabies globulin injection if necessary.