And, conversely, veterinarian schools are now looking seriously at overvaccination of pets as a source of rampant increases in diabetes, cancers, arthritis, and other potentially auto-immune related diseases. This doesn't have relevancy to humans at this point. The studies, which my veteranarian printed out for me, have to do with repeated annual vaccinations for rabies, distemper, parvo, etc. diseases which may be unnecessary - possibly harmful - at such frequent intervals. Many jurisdictions now allow blood titers to be taken for vaccine levels and will waive vaccinations if the titer result is certified as adequate to prevent disease by the vet. The titers are about as costly, sometimes less so, than the vacinations, so I go this route with my pets.
Otherwise, I would believe there would be tremendous relevancy seeing as how so much in medicine is developed using animals....even the study of AIDS was modeled on studies of retro viruses in sheep....can't think of the retro virus right now that had enough 'similarities' or whatever for the scientists to work with.