It has been 15 years since the dog bites if there is no clinical symptoms, basically will not have a rabies attack. 1. The incubation period of rabies virus is more than 1~3 months, generally more than one year, more than one year seizure cases are very few, if it is more than ten years, basically will not have an attack of rabies. 2. Rabies can be divided into three levels of exposure, the first level of exposure does not need to be vaccinated, the second or third level of exposure must be vaccinated. So when a patient is scratched and bitten by a pet and reaches the standard of secondary or tertiary exposure, he or she must be injected with rabies vaccine or immunoglobulin, so that he or she can avoid rabies only if he or she has antibodies. After being scratched or bitten by a pet, you need to go to the hospital in time, because rabies is almost 100% fatal disease, so don’t be paralyzed after being scratched or bitten by a pet.