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Proof Mad Deer Prions Adhere
To Soil, Remain Infectious
4-19-6
 
Note - Dr. Patricia Doyle and I have been stating this, clearly and unambiguously, for close to ten years now. This report is no surprise. - JR
 
Prions Adhere To Soil Minerals And Remain Infectious
 
Published in the Journal PLoS Pathogens An open-access journal published by the nonprofit organization Public Library of Science.
 
Scientists have confirmed that prions, the mysterious proteins thought to cause chronic wasting disease (CWD) in deer, latch on tightly to certain minerals in soil and remain infectious.
 
The discovery that prions stay deadly despite sticking to soil comes as a surprise, because while many proteins can bind to soil, that binding usually changes their shapes and activities.
 
In a paper published in the journal PLoS Pathogens (April 14*), scientists at the University of Wisconsin-Madison suggest that certain soil types serve as natural prion repositories in the wild. As animals regularly consume soil to meet their mineral needs, it's possible that prion-laden soil particles contribute to the transmission of prion disease such as CWD among animals.
 
"Prions most likely enter soil via excretion or from the carcasses of infected animals," says lead author Christopher Johnson, a UW-Madison doctoral student in the department of animal health and biomedical sciences. "Our results suggest that reducing the number of infected animals -- as has been done in the recent outbreak of CWD in Wisconsin -- could limit the potential for further (disease) spread. These results also suggest that other species that share ranges with CWD-infected deer may be exposed to soil-bound prions, increasing the potential of CWD transferring to other species."
 
* Full text of article:
http://pathogens.plosjournals.org/perlserv/?request=get
-document&doi=10.1371/journal.ppat.0020032

 

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