The Q – Elisa test is being used on AD positive farms to determine the level of antibody an infected mink has to the Aleutian virus. The antibody production leads to a hypergammaglobulinemia (excessive levels) which causes damage to the mink’s organ systems. By determining the antibody level in chronically infected mink with the Q-Elisa test we can compare animals in a herd and choose those who react less to the virus. This lower reactivity leads to better survivability and improved production. The Q-Elisa test has been used extensively throughout Europe, Canada and the US for selecting breeding stock to pass on the trait of less antibody production towards the virus.