The ten-day observation method refers to the rabies vaccination as soon as possible after being bitten, while observing the condition of the injured animal, and terminating the vaccination if the animal does not develop and die within ten days. The ten-day observation method is one of the rabies control methods recommended by the World Health Organization. However, it should be noted that the ten-day observation method is limited to domesticated animals with a history of two rabies vaccinations. The World Health Organization believes that if the biting animal does not die or develop a disease within ten days, the possibility of the bitten person being infected with the rabies virus can be ruled out, and therefore the vaccination can be terminated. In China, the ten-day observation method is not recommended for dog bites, and the full course of rabies vaccination is clinically recommended, as this program allows the body to produce reliable protective antibodies.