How long can the dog vaccine last? At present, the frequency of injections is once a year. Except for the first injection, three or four injections must be completed in total, it is enough for the spider to inject once every year when the injection is consolidated.
It is generally believed that the immunity of core vaccines lasts relatively long, while the immunity of non-core vaccines lasts relatively short. Some veterinarians abroad have begun to recommend that core vaccines be injected every three years, and pet owners can determine whether they need to continue consolidation of injections by testing antibodies in their dogs in the hospital.