Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 3011)

Change: Scientists are trying to develop tests to detect infected cattle before they enter the food supply. Past studies suggest that chemical changes in an animal's retina, the light sensitive nerve tissue in the   View changes from previous version. (Word count: 2903)

Change: 707 Jan 2008 UK National CJD Surveillance Unit, monthly statistics, 2007 [edited] Monthly Creutzfeldt-Jakob disease statistics -- as of 7 Jan 2008 These following figures show the number of suspect cases of CJD referred to the   View changes from previous version. (Word count: 2777)

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Change:  "The patient died at the beginning of January [2009]," it announced in a press statement. "An investigation has confirmed that the patient died of the   View changes from previous version. (Word count: 1916)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 1396)

Change: There were only format changes (bold, italics, etc.) in this version. See this version for details. (Word count: 1396)

Change:  According to this story, about 600 so-called downer cattle have been slaughtered and sold for consumption in Gyeonggi Province every year. The affliction, which causes   View changes from previous version. (Word count: 1071)

Change:  Abstract: Bovine spongiform encephalopathy (BSE), the prion disease in cattle, was widely believed to be caused by only one strain, BSE-C. BSE-C causes the fatal   View changes from previous version. (Word count: 400)

Change:  deaths from sporadic CJD, 2 deaths from iatrogenic CJD, 4 deaths from familial CJD, one from GSS, and 5 deaths from vCJD. Sources and Terms of Use   View changes from previous version. (Word count: 400)