Twenty years ago, a Texas court decided Winfrey hadn’t defamed the state’s cattle industry. At the time, local media struggled to explain the science at stake in the case.
Prion diseases are a rare class of brain disorders that are transmissible between animals of any species, including humans.
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Colin Masters, Florey Institute of Neuroscience and Mental Health
New research has identified a known neurodegenerative disease as being caused by prions. And it has again raised the possibility that these proteins are infectious.