January 1, 2007

USDA researchers evaluate prion-free cattle

The U.S. Department of Agriculture's Agricultural Research Service (ARS) announced today that initial results of a research project involving prion-free cattle are now available online at www.nature.com/nbt/. ARS scientists evaluated cattle that have been genetically modified so they do not produce prions, and determined that there were no observable adverse effects on the animals' health. LINK