In its simplest form, the germ theory proposes that the body is sterile and that germs from the air cause disease. The medical community started to look for the right pill to kill off the germ. This concept became ingrained into medicine and medical research.
Most research goes to looking for the right pill for a specific disease.
If new ideas concerning the cause of disease do not fit into this theory that airborne germs cause disease and the answer to illness is finding the right pill to cure the disease, then these new ideas fall on deaf ears. Any paradigm, or group of ideas, is difficult to break into if the new ideas do not add to the original ideas. The billion dollar pharmaceutical industry has taken away some of the symptoms and pain but has not found the answer to many infectious and most all degenerative diseases. In the U. S., in spite of all the money, research, and volunteer hours spent, all major degenerative diseases are increasing per 100,000. Diabetes is increasing at an alarming rate.