How many years does a rabies vaccine protect a person?

Apr 22, 2023 Source: Cainiu Health
Dr. Li Feng
Introduction
After receiving the rabies vaccine, protection can last for 1 to 3 years, with the first six months being the period of most effective protection. Full vaccination is required if scratched, bitten by an animal, or if there is suspected exposure to the virus. The protective effect after completing the full course of rabies vaccination lasts for 1 to 3 years. If re-exposure occurs within six months, revaccination is not necessary. However, if exposure occurs more than six months after vaccination, two booster doses are needed. If more than three years have passed, a complete new series of vaccinations is required.

After receiving the rabies vaccine, immunity generally lasts for 1 to 3 years, with the first six months being the period of most effective protection. Detailed analysis is as follows:

Following scratches or bites from animals such as cats or dogs, or if there is suspicion of virus exposure, it is necessary to complete the full course of rabies vaccination under a doctor's guidance to prevent the onset of rabies. Under normal circumstances, the protective effect after completing the full vaccination series can last 1 to 3 years. If another exposure occurs within six months, re-vaccination is usually not required. However, if exposure occurs more than six months after the initial vaccination, two booster doses of the rabies vaccine are needed. If exposure occurs more than three years after the previous vaccination, a complete new course of rabies vaccination is required.

After receiving the rabies vaccine, individuals should monitor their physical condition. If adverse symptoms such as nausea or fever occur, immediate medical attention at a hospital is necessary.

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