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LSI e-Catalogue 2012 Veterinary Diagnostic Kits Elisa, PCR and BVD (English) |
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e-Catalogue LSI 2012 des kits de diagnostic vétérinaire Elisa, PCR et BVD (FR) |
Bovine tuberculosis (TB) is a well-known zoonosis which is a major problem throughout the world. It is a chronic disease that affects bovines and certain wild animals. The main causative agent, Mycobacterium bovis, belongs to the Mycobacterium tuberculosis complex (MTBC) which includes human and animal pathogens such as Mycobacterium caprae and Mycobacterium tuberculosis. TB is a contagious disease which is transmitted as a result of exposure to infected animals. It causes a deterioration in general condition (with fever, weakness and wasting), usually with coughing and ultimately death. The usual route of transmission is inhalation of a contaminated aerosol (when droplets are projected as a result of coughing) but transmission is also possible through the consumption of unpasteurised milk from infected cows. Because the disease progresses slowly, an infected animal may have passed the bacterium on to other animals in the herd before it shows any symptoms. TB is a major public health problem in affected countries and it has serious social and economic repercussions with effects on the international exchange of animals and animal products. Although bovines are considered as the natural host of M.bovis, the disease has been reported in many other wild and domesticated species, including ovines, caprines, equids, camelids, pigs, rodents, primates and felines).