Prior to 1936, Crohn's disease was a rare and unrecognized disease entity. Today, the United States is the midst of a rapidly growing epidemic. It is estimated that between 800,000 and 1.2 million citizens are currently afflicted. The unanswered question is WHY? In the 1990s, circumstantial scientific data inferred a potential causal relationship between Crohn's disease in humans and mycobacterial pathogen in domestic animals, Mycobacterium avium...