Life long immunity does not apply to killed vaccines (i.e. rabies). There is no study to support that now. Only modified live viruses (i.e. parvo, distemper, etc.)...
It would be like the human tetanus vaccine. It is supposed to be given much more often than most of the others.
__________________ Crystal  , Ellie May (RIP)  , Rylee Finnegan  , and Gracie Boo🐶 |