Johnes Disease (paratuberculosis) also known as MAP (the infectious organism) is a chronic infectious bacterial enteritis that results in persistent diarrhoea, progressive wasting and eventual death. [..]

Glossary of health terms : ACCREDITED -

 Immune substances produced in response to an infection or vaccination or acquired as in colostrum or antisera. ANTIGENS -

 Serum containing antibodies to a particular disease or diseases which when administered to an animal provides it with temporary immunity. BIOSECURITY -

 Bovine Viral Diarrhoea (see Part 1). CARRIER - 

 Immunity, which is dependent on the sensitisation of certain white blood cells, rather than antibodies. CHeCS -

 A herd into which no animals are imported; truly closed herds must not have any biological contact with other herds. This includes never bringing leased animals onto the property, not using bought in [..]

When an animal may be infected with two or more infections at the same time. D.N.A. - 

 Divisional Veterinary Manager to whose office all incidents of notifiable diseases should be reported. ENCEPHALOPATHIES -

 The process of removing a particular infection from a herd. HERDCARE -