Prion diseases arise in three different ways
Route of infection When cows are fed with offals prepared from infected sheep, prions are taken up from the gut and transported along nerve fibers to the brain stem. Here prions accumulate and convert normal prion proteins to the disease-causing form, PrPSc. Years later, BSE results when a sufficient number of nerve cells have become damaged, affecting the behaviour of the cows. |
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The kuru epidemic started a long time ago and has subsided since the 1950s. The mad cow disease epidemic started in 1985 affecting approximately 170,000 cows.
Nobel Prizes and laureates
Eleven laureates were awarded a Nobel Prize in 2023, for achievements that have conferred the greatest benefit to humankind. Their work and discoveries range from effective mRNA vaccines and attosecond physics to fighting against the oppression of women.
See them all presented here.
See them all presented here.
Explore prizes and laureates
Look for popular awards and laureates in different fields, and discover the history of the Nobel Prize.