When Jessy called, the heifer had just completed treatment the day before. Johne’s disease is both a herd and individual animal disease. Other species in this group include Mycobacterium bovis that causes cattle tuberculosis, Mycobacterium tuberculosis that causes human tuberculosis and Mycobacterium leprae, which causes leprosy in humans. These move to the infected intestinal walls and cause the thickened ridges and ulcers. The thickened intestinal walls get damaged and are unable to absorb water and other nutrients.

Source: Daily Nation May 15, 2020 18:11 UTC