Witness History - Mad cow disease - CJD - 大象传媒 Sounds
Witness History - Mad cow disease - CJD - 大象传媒 Sounds
Mad cow disease - CJDMad cow disease - CJD
Released On: 21 Dec 2012
Available for over a year
In the 1990s it became clear that a brain disease could be passed from cows to humans.
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