Personally, for my own dogs, I would wait until after the age of 16 weeks and then give them a full dose each of distemper, hepatitis, and parvo separately (2-3 weeks apart). Here in Maine, we don't have to vaccinate puppies against rabies until they are 6 months old, so I would wait until 6 months to give my own puppy a rabies shot.
You'd have to discuss the 1/2 dose with your veterinarian. From what I understand, there has to be a certain level of antigen for a vaccine to be effective, and I don't know that 1/2 dose would be enough.
Kris |