Rabies is a relatively common clinical category of disease following a dog bite. Rabies is tested for antibodies and is a serum virus neutralizing antibody minimum of 0.5 IU/L, which has been widely used as a reference value. This indicator can be given to certain measurements, including the physical health of the vaccine recipient, regardless of age or whether rabies immunoglobulin treatment is given at the same time, on the 14th day of exposure prophylaxis, most vaccinated people should also reach this level, this level can effectively protect the body, can effectively neutralize the rabies virus, can effectively prevent the occurrence of rabies. If the test is below this level, the chance of rabies will increase.