How to know whether the puppy has been vaccinated?

If you want to know whether the puppy has been vaccinated, you can take the puppy to the hospital for an antibody test. Whether the puppy has been vaccinated cannot be judged by the naked eye. Antibody testing is the most effective It is also the most accurate method. The success rate of vaccination is not 100%, and there may be cases of immune failure. Taking the puppy for antibody testing can not only know whether the puppy has been vaccinated, but also whether the vaccine is successful and whether it needs to be re-vaccinated.