In one review it was reported that one dog in 300 seen at 14 university veterinary teaching hospitals had some elbow disease. (siriusdog.com)
Many vets, including those at veterinary teaching hospitals, get confused about just what you described — the type I / type II more immediate reactions vs. delayed reactions. (healthypets.mercola.com)
I do think that the pharmaceutical industry has too much influence in veterinary teaching. (dogsnaturallymagazine.com)