b'BSEWhat is it? HistoryBovine Spongiform Encephalopathy alsoThe first case of BSE was in a cow on a known as mad cow disease affects theWest Sussex farm in 1986. In total, 180,000 central nervous systems of cows, and iscows were affected and 4.4 million were caused by an abnormal infectious proteinslaughtered during the eradication known as a prion. It has a long incubationprogramme 33 . It cost the UK economy period, which means that it typically takesbetween 740 million and 980 million 34 . four to six years for cows infected with BSEThe disease has now been found in at least to show signs of the disease. Many cows27 countries 34 . are slaughtered or culled long before those signs appear. In 1996, the government announced a probable link between BSE in cows and 10'