71.   Dalgety has been the U.K. foodmaker hardest hit by the mad cow crisis.

72.   Despite stringent measures to protect people and cattle from mad cow disease, experts in and out of government say more can be done.

73.   Detwiler said Wednesday that the government was still uncertain whether the animals had mad cow disease or a more common and less dangerous sheep illness called scrapie.

74.   Diseased cattle feed led to the spread of bovine spongiform encephalopathy, or mad cow disease.

75.   Dr. Thomas Pringle, a biochemist, never planned to become an authority on mad cow disease.

76.   Dr. Thomas Pringle, a biochemist in Eugene, Ore., and an expert on mad cow disease, said the researchers were taking official data at face value.

77.   Dr. Manuelidis said she suspected that a virus would ultimately be proved the culprit in mad cow disease and other diseases attributed to prions.

78.   Elk, deer, mink, rodents and other wild animals are known to develop variants of mad cow disease that collectively are called transmissible spongiform encephalopathies.

79.   European beef is already banned by the United States because of mad cow disease, which can cause the fatal Creutzfeldt-Jakob disease in humans.

80.   Even fears over mad cow disease were supposed to help Brazil, as customers of European beef turned elsewhere.