Long incubation period a tricky part of Johne’s disease
Have you ever had a thin cow with diarrhea that would not put on weight? If so, you might have been dealing with Johne’s disease. I regularly receive questions about this condition, so this article is an attempt to provide some basic information on Johne’s (pronounced Yo-knees) disease. Johne’s disease is caused by in infection in the intestine with the bacteria Mycobacterium avium subspecies paratuberculosis. Cattle generally are infected early in life by the fecal-oral route but will not show signs of the disease until months to years later after a long incubation period.