Rats are low-risk animals for rabies transmission and generally do not transmit rabies, but it also depends on the area in which they are located. Theoretically, all mammals can develop rabies, and all mammals are potentially at risk after being injured and should be vaccinated, but it depends on immunization status and wound level. Based on the risk of disease after injury, we classify injured animals as high risk, low risk, or no risk. High-risk animals: (1) dogs and cats; (2) stray or wild mammals; (3) bats. Low-risk animals: cattle, sheep, horses, pigs and other domestic animals, rabbits, rats and other rodents. No-risk animals: All animals other than mammals do not transmit rabies, such as turtles, fish, and birds, etc. Injuries caused by them are no risk of exposure and do not require post-exposure rabies disposal. People are low-risk animals and do not need to be disposed of for ordinary contact. Close contact with rabies patients should be disposed of for high risk. China is a high-risk area for rabies. Therefore, post-exposure treatment should always be carried out after being injured by a high-risk animal. Whether or not to conduct post-exposure treatment after being injured by a low-risk animal should be based on the local epidemiological situation. Post-exposure disposal is generally not recommended. If a local unexplained death of a low-risk animal is found, or if a low-risk animal is found to have rabies, it is recommended that it be disposed of in accordance with the high-risk animal. Therefore, scratches and bites by rodents generally do not transmit rabies, and no cases of rabies transmission by rodents have been found worldwide. No cases of rabies infection or transmission by hamsters have been reported, and rabies vaccination is not required for bites by hamsters if there is no special reason. Rodents may have multiple bacteria and viruses in their mouths, including tetanus and hemorrhagic fever viruses, and serious bites should be considered for tetanus immunoglobulin and vaccination, as well as vigilance against infectious diseases such as rat bite fever and renal syndrome hemorrhagic fever.