The conditions of rabies transmission can be divided into the following three aspects: First, the source of infection. Generally speaking, people get rabies by animals. If an animal around oneself does not carry the rabies virus and does not have an attack of rabies, it is not able to be a qualified source of infection. Even if the person has a more intimate contact with the person, it will not be infected with rabies; second, the transmission route. Dogs, cats and other animals carrying rabies virus need to bite or scratch people, or lick their mucous membranes, and it is possible to infect people with rabies through these means. Therefore, if there are no such transmission routes, it will not cause infection; third, susceptible people. If a person has been vaccinated against rabies and is within six months, he or she will generally not be infected with rabies. If this time is exceeded, there will be a certain degree of decline in rabies antibodies before a person may be infected with rabies. If a person has never been vaccinated against rabies before and does not have immunity to the rabies virus, it is possible to be infected with rabies if bitten or scratched.