Here is a link for you JDI:
The problem is over vaccination which may lead to vaccinosis; chronic disease caused by vaccines. (Dr. Richard Pitcairn) "Animals react adversely to vaccines in two main ways. The first is the more obvious immediate anaphylactic response, where the animal may develop swelling of the face or ears, as well as pain and inflammation at the site of injection," said Donna Starita Mehan, D.V.M., a veterinarian in Boring, Oregon. "But a larger number of animals develop an undercurrent, [a] subtle immune system shift that compounds every time they receive a vaccination. This may later manifest as any number of chronic degenerative illnesses such as arthritis, skin or ear problems, gum or throat inflammation, behavior problems, central nervous system disorders (i.e. Epilepsy), or cancer." (critterchat)
Many vets don't recognize this link, however, many owners and breeders believe we've only begun to discover how many diseases or general malaise is directly attributed to over vaccination.
Margaret Rivera's Vaccinosis Story
Over vaccination is three fold. The first is giving one multi combo vaccine (one shot that contains more than one vaccine) to cover a variety of diseases. The second is giving vaccinations to cover disease that the animal is unlikely to encounter or that the vaccine is not effective against. The third is giving vaccines too often. http://www.geocities.com/Petsburgh/F...cinations.html