If a rat bite is not very deep, just a superficial abrasion, only rabies vaccination can be injected. Generally, the rabies vaccine should be given within 28 days, one injection per day on the day of the injury and on the 3rd, 7th, 14th and 28th days, and only after the 5 injections can you have complete immunity to the rabies virus. In addition, if a rat bite is deep and bleeds a lot, in addition to the rabies vaccine, tetanus antitoxin must also be injected. In addition to the 5 injections of rabies vaccine, there is an additional injection of tetanus antitoxin, for a total of 6 injections, and the tetanus antitoxin is injected within 24 hours of the injury.