If you are bitten or scratched by a dog or cat for the first time, you should receive rabies vaccination as soon as possible. At present, there are two international vaccination programs: the first is the “2-1-1” program, in which two shots of the vaccine should be given within 24 hours after the first bite, i.e., one shot on the left and one on the right arm on the same day, followed by one shot on the seventh day and one on the twenty-first day, for a total of three visits and four injections; the second is the “5 The second is the “5 shot method”, which requires 1 shot of rabies vaccine on the day after the bite (day 0), 3 days, 7 days, 14 days, and 28 days respectively. These two methods have the same effect, but obviously the four-shot method is more convenient. However, the first two doses of the four-dose method are too high, and some people, especially children, are prone to side effects such as fever. Anyone who is at risk of exposure to rabies virus (such as veterinarians, animal breeders, forestry workers, slaughterhouse workers, rabies experimenters, and people who come into contact with rabies patients) should receive rabies vaccine according to the pre-exposure immunization procedure. The three-dose method of pre-exposure prophylaxis consists of one dose of rabies vaccine on the same day (day 0), seven days, 21 days, or 28 days, respectively. In the case of people who are continuously exposed to rabies risk, after completing the entire pre-exposure basic immunization, a booster dose will be given after 1 year in the absence of animal-induced injury, and a booster dose will be given every 3 to 5 years thereafter.