Bovine Tuberculosis (TB) is an infectious disease of cattle. It is caused by the bacterium Mycobacterium bovis which can also infect and cause disease in many other mammals including humans, deer, goats, pigs, cats, dogs and badgers, Infection is mainly through inhalation or ingestion of the bacteria, Contaminated food and water can also be a source of infection, TB in humans can be caused by both Mycobacterium bovis and the human form, Mycobacterium tuberculosis, it is mainly a respiratory disease but clinical signs are rare.