I don't give nor recomment Lepto or Corona shots. A dog can also get it from possum urine by them going to the bathroom in the backyard...I know this because a friend of mine's yorkie contracted it but was ok after antibotics...
My vet has no problem with what vaccines I request. I also give 1/2 shots on my pups. I have a great vet that listens to me as a breeder
Donna