Resumen de Mad cow disease. (Cover story)
The article discusses the origin of mad cow disease also called bovine spongiform encephalopathy (BSE). Topics include an overview of the process called rendering which separates the ground-up components of animals to produce feed and kills prions that cause disease, the cost-cutting measures taken by renderers such as use of a centrifuge instead of heat and solvents to separate nonedible parts including hooves, spinal cords, and brains, and the global spread of the disease as a result.
