One of the most existentially frightening illnesses ever to be discovered was mad cow disease, a fatal prion-spread illness that appeared in animals in the 1980s and killed over 200 people during the ...

China and a number of other countries have suspended imports of Brazilian beef after a case of mad cow disease was confirmed last month, sparking concern for the country’s crucial livestock sector as ...

By Anjali Srivastava: Mad cow disease, or Bovine Spongiform Encephalopathy (BSE), is a fatal brain disorder in cattle caused by abnormal proteins called prions. Its human form, variant ...