If you are bitten again after rabies vaccination, you should judge the relationship with the vaccination course and decide whether to inject or not and the agent to be injected. 1. Bitten during rabies vaccination: The rabies vaccination program in China is divided into 5 injections or 4 injections, which need to be completed within 28 days or 21 days. If you are bitten during the vaccination, you only need to treat the wound according to the standard and continue the vaccination according to the original procedure. 2. Bitten half a year after the rabies vaccination: the effective titer of rabies vaccine antibody will remain in the body for half a year, and there is no need to re-inject the vaccine if bitten again within this period of time, as the antibody in the body can effectively neutralize the virus. 3. Bitten within half a year to one year after vaccination: If bitten within this period, two booster injections should be given, one on the first and one on the fourth day of the bite, so as to increase the titer of the antibody and effectively resist the rabies virus that has entered the human body from the bite. 4. Bitten one year after vaccination: If you are bitten at this time, you need to follow the procedure of rabies vaccination again to prevent the rabies virus effectively. Therefore, if you are bitten again after taking rabies vaccine, whether you need to take the vaccine again should be analyzed according to the specific time and judged under the guidance of professional doctors.