Cows Engineered to Lack Mad Cow Disease (Chicago Tribune) Scientists have genetically engineered a dozen cows to be free from the proteins that cause mad cow disease, a breakthrough that may make the animals immune to the brain-wasting disease. [News Source]

No risk seen in mad cow gene tweak (Los Angeles Times) Cattle can be genetically altered to lack the protein that causes mad cow disease without adverse health effects, a study by scientists at the U.S. Department of Agriculture and Hematech Inc. shows. The findings, published on the website of the journal Nature Biotechnology, suggest that genetic modifications can protect cattle from the disease, potentially eradicating the threat to livestock and ... [News Source]

Scientists create mad-cow-free cows (KING 5 Seattle) Scientists have genetically engineered a dozen cows to be free of the proteins that cause mad cow disease, a breakthrough that may make the animals immune to the brain-wasting disorder. [News Source]

Scientists Engineer ‘Mad Cow-Free’ Livestock (KGO-TV Bay Area) Scientists have genetically engineered cows to be free from the proteins that cause mad cow disease. [News Source]

Cows Engineered To Lack Mad Cow Disease (WLBZ Bangor) Scientists are hoping that genetic engineering will result in a cow that can't get mad cow disease. [News Source]

Scientists develop cows free of proteins causing mad cow disease. Scientists have genetically engineered a dozen cows to be free from the proteins that cause mad cow disease, a breakthrough that may make the animals immune to the brain-wasting disease. [News Source]

Cows Engineered To Lack Mad Cow Disease (WCSH 6 Portland) Scientists are hoping that genetic engineering will result in a cow that can't get mad cow disease. [News Source]

Scientists create mad-cow-free cows (KING 5 Seattle) Scientists have genetically engineered a dozen cows to be free of the proteins that cause mad cow disease, a breakthrough that may make the animals immune to the brain-wasting disorder. [News Source]

Scientists Announce Mad Cow Breakthrough (TechNewsWorld.com) Scientists have genetically engineered a dozen cows to be free from the proteins that cause mad cow disease, a breakthrough that may make the animals immune to the brain-wasting illness. An international team of researchers from the U.S. and Japan reported Sunday that they had "knocked out" the gene responsible for making the proteins, called "prions." [News Source]

Scientists Engineer Mad Cow Free Cows (CBS 13 Sacramento) Scientists have genetically engineered cows to be free from the proteins that cause mad cow disease. [News Source]