Rabies vaccination is generally not required after a rat bite because rats are not hosts for rabies virus and therefore the probability of contracting rabies virus from a rat bite is low. What is generally needed after a rat bite is a hemorrhagic fever vaccine and tetanus antitoxin, tetanus vaccine or tetanus immunoglobulin. Rats belong to the carious group of animals, and common rodents such as the black-line gopher and brown house mouse are also infectious sources of epidemic hemorrhagic fever and may carry hantavirus. Therefore, in order to prevent infection with epidemic hemorrhagic fever after being bitten by a rat, it is necessary to receive the hemorrhagic fever vaccine in a timely manner. The epidemic hemorrhagic fever vaccine is administered in two doses, one on the day of the rat bite and the second 14 days later. For deeper wounds after a rat bite, tetanus antitoxin, tetanus immunoglobulin or tetanus vaccine is also recommended to prevent infection with Clostridium tetani. If infected with Clostridium tetani, it can cause muscle tonicity and spasms in the body, and even death by asphyxiation from spasms can occur. In addition to the above vaccination for hemorrhagic fever and tetanus, you need to wash the wound with water or soapy water immediately after being bitten by a rat, and then disinfect it with iodine or alcohol, and keep the wound dry after disinfection. Although rats are less likely to cause rabies, selective rabies vaccination is also available to avoid the nervousness of the bitten person and to avoid rabies infection, and specific treatment measures require consultation with a doctor or the guidance of a professional from a local infectious disease agency.