Update on control and management of Johne's disease

Abstract

The new diagnostic tests for Johne's disease, when used and interpreted properly, will provide us with some important new tools to fight Johne's disease. However, no test will control Johne's disease without proper changes in the health management of the herd. Many of these changes involve improving the hygiene, identifying and removing infected animals and preventing infection of calves with the Johne's disease bacteria.