Little Jaden has been doing great, to my estimation he's about 6 weeks old. If you're wondering why I have him so young, please refer to my introductory post. I have been out of the veterinary arena for about 12 years now so I'm not up on the latest on the ever changing world of vaccines. Jaden has been exposted to a puppy that was just diagnosed with parvo. I will get a vaccine tomorrow for him, ( I was going to wait until the usual routine of 8, 12, and 16 weeks but...) My question is, does he get a half dose? I don't have a weight on him but he's probably about a pound.