The last shot of rabies vaccine needs to be injected on the 28th day, but some patients forget the last shot, and it does not matter much if it is delayed for a month or so, as long as they go to the CDC to get a refill. The standard rabies vaccination usually requires five injections, and the body will gradually produce antibodies from the first injection, and by the third injection, the titer of antibodies in the body is already high, and the fourth and fifth injections mainly play the role of consolidation and strengthening, so that the body can maintain the effective concentration of antibodies in the body for a longer period of time. It will not affect the effect of immunization and will not lead to the occurrence of rabies.