MAP and the Farm
MAP was first identified as a pathogen in the late 1800s, when it was determined to be the cause of Johne’s (pronounced YO-nees) disease in cattle. Johne’s disease, sometimes called paratuberculosis or Bovine Johne’s Disease (BJD), is a chronic, fatal, gastrointestinal wasting disease that primarily affects the small intestine of ruminants like cattle, deer, sheep, goats, antelope, bison and even camels!



In this first video, Dr. William Chamberlin presents an overview of Crohn’s disease and outlines the research supporting a causal role by Mycobacterium avium ssp paratuberculosis. This is just a preview of things to come. Additional videos will be available shortly.