The rabies vaccine was given two years ago and usually does not need to be refilled if you are not bitten again by an animal or the like at the present time. After being bitten or scratched by an animal, the human body should treat the wound promptly and correctly, and inject the rabies vaccine within 24 hours. After the full injection, the body will produce rabies antibodies, which can effectively protect the body from rabies virus infection. The rabies vaccine is usually valid for about 6 months. If the patient is bitten again within 6 months after the end of the injection, he/she only needs to treat the wound correctly and usually does not need to be vaccinated again. If the patient has not been bitten by a dog, etc. after 2 years, there is usually no need for a supplemental rabies vaccination. If the patient is bitten by a dog again after 2 years, it is recommended that the patient seek medical advice and take appropriate treatment measures under the guidance of a doctor.