[YellowJakesMom]

When considering at what age a puppy should begin receiving its core vaccines, consider the information from the American Animal Hospital Association stating that the maternal antibodies in a puppy younger than 16 weeks may interfer with the immune response.

I think it needs to be pointed out to anyone else reading that despite what Kris may imply, AAHA does not endorse waiting until 16 weeks to begin vaccinating puppies. In fact, I would hazard a guess that it would be hard for a hospital to be AAHA certified if it didn't vaccinate puppies until 16 weeks.

AAHA's Revised 2006 vaccination guidelines state for Distemper, Parvo, and Adenovirus vaccines, "All puppies should receive a minimum of 3 doses between the ages of 6 and 16 weeks administered at intervals of 3 to 4 weeks (e.g., at 6, 10, and 14 weeks, or 8, 12, and 16 weeks). The final dose should be administered at 14-16 weeks of age." AAHA Vaccine Guidelines PDF

It's true that maternal antibodies can interfere with vaccines. That's why we use the vaccines schedule we do, to ensure that those whose maternal antibodies have waned are covered early enough.

Kris, I'm glad you're posting and sharing information that you have, because I think overvaccination is a problem and the Rabies Challenge studies are a great thing for animals. However, posting misleading statements and implying that certain organizations agree with such statements is wrong.