In Canada, Europe and the United States, an elite group of scientists has been tracking an insidious brain wasting disease that emerged in deer at a research facility in Colorado in the 1960s, Chronic Wasting Disease.
Overview：In Canada, Europe and the United States, an elite group of scientists has been tracking an insidious brain wasting disease that emerged in deer at a research facility in Colorado in the 1960s, Chronic Wasting Disease.
