It is important to get a rabies vaccination within 24 hours of being bitten by an animal such as a dog or cat, and the sooner the better. If there is no bite only prevention, there is no specific time requirement. The full rabies vaccination is required after a bite, i.e. one injection each on day 0 (the day of the bite), 3 days, 7 days, 14 days and 28 days after the bite, for a total of 5 injections. If there is no bite, only three injections are required, one on day 0 (the day), one on day 7 and one on day 21. If you are scratched or bitten by a dog or cat within six months after vaccination, you do not need to be vaccinated; if you are scratched or bitten by a dog or cat again within six months to one year, you need a booster vaccination, which should also be given within 24 hours after the bite; if you are bitten more than one year after receiving rabies vaccination, you need to get the full rabies vaccination again. In addition, once the attack of rabies, the mortality rate is almost 100%, there is no effective treatment, so if you are bitten by cats, dogs and other animals, you should not take a chance, you should go to the hospital in time to inject rabies vaccine, and if necessary, rabies immunoglobulin.