Quote:
Originally Posted by Ellie May 
It is also not okay to finish DHP so early. She may not have even been receptive since she is so young. The very youngest this vaccine should be stopped is 16 weeks and new research says 18 weeks.
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In one study of a cross section of different puppies the age at which they were able to respond to a vaccine and develop protection covered a wide period of time. At six weeks of age, 25% of the puppies could be immunized. At 9 weeks of age, 40% of the puppies were able to respond to the vaccine. The number increased to 60% by 16 weeks, and by 18 weeks of age, 95% of the puppies could be immunized. Parvovirus: Serious Diarrhea in Puppies & Dogs
These poor puppies are going to need a fourth round of vaccinations.
