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Review
. 2004 Jun;10(6):977-84.
doi: 10.3201/eid1006.031082.

Chronic wasting disease and potential transmission to humans

Ermias D Belay  1 , Ryan A Maddox, Elizabeth S Williams, Michael W Miller, Pierluigi Gambetti, Lawrence B Schonberger
Affiliations
Review

Chronic wasting disease and potential transmission to humans

Ermias D Belay et al. Emerg Infect Dis. 2004 Jun.

Abstract

Chronic wasting disease (CWD) of deer and elk is endemic in a tri-corner area of Colorado, Wyoming, and Nebraska, and new foci of CWD have been detected in other parts of the United States. Although detection in some areas may be related to increased surveillance, introduction of CWD due to translocation or natural migration of animals may account for some new foci of infection. Increasing spread of CWD has raised concerns about the potential for increasing human exposure to the CWD agent. The foodborne transmission of bovine spongiform encephalopathy to humans indicates that the species barrier may not completely protect humans from animal prion diseases. Conversion of human prion protein by CWD-associated prions has been demonstrated in an in vitro cell-free experiment, but limited investigations have not identified strong evidence for CWD transmission to humans. More epidemiologic and laboratory studies are needed to monitor the possibility of such transmissions

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Figure
Chronic wasting disease among free-ranging deer and elk by county, United States.
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