After being scratched by a dog, you will also need to get a shot. If the dog’s saliva contains the rabies virus, it is also possible for the dog to splash its own paw and thus transmit rabies to a person through a scratching injury. However, scratching is significantly less likely to transmit rabies than biting, but it is not possible to tell whether or not you have been infected, and scratching is still treated the same as biting. If the scratching breaks the skin, there is no bleeding, belongs to the second level of exposure, only need to give the person rabies vaccine, generally also need to follow the way of post-exposure prophylaxis, complete five injections, some rabies vaccine can be used in a four-shot method, only four injections, injection of three times, the first injection of two rabies vaccine, and the next two injections of one injection each. If there is significant bleeding after scratching, this is judged to be a tertiary exposure, and a human immunoglobulin or serum for rabies is required on top of the rabies vaccine.