Mistakes can be made during scientific research with devastating effects. Keeping an open mind to the possibility of error and correcting immediately can make the difference between life and death.
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.
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.
News that a Sydney man has contracted Creutzfeld-Jacob disease serves to highlight that we still don't know how to prevent a disease that most often goes unreported, and unremarked on.