Bitten by a vaccinated dog, need to play rabies vaccine. The dog has been vaccinated, it is generally difficult to determine whether the immunization is successful, but also can not be sure whether the vaccination is rabies vaccine, at this time the dog will still have the possibility of carrying the rabies virus in the body, the dog bite human body will also be infected with the risk of rabies virus. Because of the 100% lethality of rabies, once a person is bitten by a dog skin should be promptly cleaned with a lot of water or soap and water, and need to be vaccinated against rabies. If the bite wound is more serious and larger, the patient can also be injected with immunoglobulin under the guidance of the doctor to strengthen the prevention after the rabies vaccination.