Description given on Youtube:
If you were around in the ’90s, you might remember the scare over mad cow disease, but it seems to have quieted down in the intervening years. What happened?
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سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Bella Nash, Charles Southerland, Patrick D. Ashmore, Tim Curwick, charles george, Kevin Bealer, Philippe von Bergen, Chris Peters, Fatima Iqbal
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Sources:
http://www.oie.int/en/animal-health-in-the-world/bse-specific-data/number-of-cases-in-the-united-kingdom/
https://www.cdc.gov/prions/bse/about.html
http://www.bseinfo.org/bseclinicalsignssymptoms.aspx
https://www.scientificamerican.com/article/what-is-a-prion-specifica/
http://www.hopkinsmedicine.org/healthlibrary/conditions/nervous_system_disorders/prion_diseases_134,56/
http://www.mayoclinic.org/diseases-conditions/creutzfeldt-jakob-disease/basics/definition/con-20028005
https://www.fda.gov/BiologicsBloodVaccines/BloodBloodProducts/QuestionsaboutBlood/DonatingBlood/
http://www.who.int/mediacentre/factsheets/fs180/en/
https://www.cdc.gov/prions/vcjd/vcjd-reported.html
https://www.cdc.gov/prions/vcjd/risk-travelers.html
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Images:
https://en.wikipedia.org/wiki/File:Aphis.usda.gov_BSE_5.jpg