INFECTIOUS DISEASES:
Is BSE in Sheep a No-Brainer?
Michael Balter
Last week, a team from the U.K.'s Institute for Animal Health was on the verge of publishing experiments indicating that samples of sheep brain might be harboring bovine spongiform encephalopathy, or "mad cow disease." But the paper was pulled at the last minute when the institute, doing a last check on the source of the samples, was told by an independent laboratory that the material it thought was sheep brain actually came from cattle.