The incubation period for rabies is usually 1-3 months. For short periods, it can appear in about 5 days to 1 week; for long periods, it rarely exceeds 1 year. According to authoritative data, the longest incubation period in the world is only one case at 6 years. The incubation period of rabies is related to the site of the bite. If the site of the bite is close to the central nervous system and the brain, the shorter the time of onset and the shorter the incubation period. If an infant or child is bitten by a dog, the incubation period is very short. It is generally believed that when the rabies virus enters the body, it moves closer to the central nervous system at a rate of 3mm per day, and after reaching the central nervous system, it travels up to the medulla oblongata and brainstem. Therefore, the specific incubation period is highly dependent on the site of the bite.